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Conserved domains on  [gi|408722335|gb|AFU85788|]
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cytochrome c oxidase subunit I, partial (mitochondrion) [Gelidium hommersandii]

Protein Classification

cytochrome c oxidase subunit 1( domain architecture ID 10108859)

cytochrome c oxidase subunit 1 is the catalytic subunit of cytochrome c oxidase, which is the component of the respiratory chain that catalyzes the reduction of oxygen to water

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Cyt_c_Oxidase_I cd01663
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ...
1-397 0e+00

Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.


:

Pssm-ID: 238833  Cd Length: 488  Bit Score: 750.08  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:cd01663   49 VTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMAFPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILA 128
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:cd01663  129 HSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRAPGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNT 208
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:cd01663  209 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGIISHIISTFSgKKPVFGYLGMVYAMLSIGILGFIVWAHHMFTVGL 288
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:cd01663  289 DVDTRAYFTAATMIIAVPTGIKVFSWLATMWGGSIKFETPMLWALGFIFLFTIGGLTGVVLANSSLDIALHDTYYVVAHF 368
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:cd01663  369 HYVLSMGAVFAIFAGFYYWFPKITGLSYNETLGKIHFWLMFIGVNLTFFPQHFLGLAGMPRRYPDYPDAYAGWNMISS 446
 
Name Accession Description Interval E-value
Cyt_c_Oxidase_I cd01663
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ...
1-397 0e+00

Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.


Pssm-ID: 238833  Cd Length: 488  Bit Score: 750.08  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:cd01663   49 VTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMAFPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILA 128
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:cd01663  129 HSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRAPGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNT 208
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:cd01663  209 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGIISHIISTFSgKKPVFGYLGMVYAMLSIGILGFIVWAHHMFTVGL 288
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:cd01663  289 DVDTRAYFTAATMIIAVPTGIKVFSWLATMWGGSIKFETPMLWALGFIFLFTIGGLTGVVLANSSLDIALHDTYYVVAHF 368
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:cd01663  369 HYVLSMGAVFAIFAGFYYWFPKITGLSYNETLGKIHFWLMFIGVNLTFFPQHFLGLAGMPRRYPDYPDAYAGWNMISS 446
COX1 MTH00153
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177210  Cd Length: 511  Bit Score: 685.06  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00153  56 VTAHAFIMIFFMVMPIMIGGFGNWLVPLMLGAPDMAFPRMNNMSFWLLPPSLTLLLSSSMVESGAGTGWTVYPPLSSNIA 135
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00153 136 HSGASVDLAIFSLHLAGISSILGAINFITTIINMRSKGMTLDRMPLFVWSVLITAILLLLSLPVLAGAITMLLTDRNLNT 215
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00153 216 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIISQESgKKETFGTLGMIYAMLAIGLLGFIVWAHHMFTVGM 295
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00153 296 DVDTRAYFTSATMIIAVPTGIKIFSWLATLHGSQINYSPSLLWALGFVFLFTIGGLTGVVLANSSIDIILHDTYYVVAHF 375
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00153 376 HYVLSMGAVFAIMGGFIHWFPLFTGLTMNPKWLKIQFFIMFIGVNLTFFPQHFLGLAGMPRRYSDYPDAYTSWNVISS 453
CtaD_CoxA TIGR02891
cytochrome c oxidase, subunit I; This large family represents subunit I's (CtaD, CoxA, CaaA) ...
1-397 0e+00

cytochrome c oxidase, subunit I; This large family represents subunit I's (CtaD, CoxA, CaaA) of cytochrome c oxidases of bacterial origin. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits I-III form the functional core of the enzyme complex. Subunit I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit II and heme a of subunit I to the bimetallic center formed by heme a3 and copper B. This cytochrome c oxidase shows proton pump activity across the membrane in addition to the electron transfer. In the bacilli an apparent split (paralogism) has created a sister clade (TIGR02882) encoding subunits (QoxA) of the aa3-type quinone oxidase complex which reacts directly with quinones, bypassing the interaction with soluble cytochrome c. This model attempts to exclude these sequences, placing them between the trusted and noise cutoffs. These families, as well as archaeal and eukaryotic cytochrome c subunit I's are included within the superfamily model, pfam00115. [Energy metabolism, Electron transport]


Pssm-ID: 213748  Cd Length: 499  Bit Score: 537.19  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335    1 ITAHAFLMIFFMVMPVLiGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:TIGR02891  52 FTMHGTIMIFLFAIPIL-AGFGNYLLPLMIGARDMAFPRLNAFSYWLYLFGGLLLLASFFTGGAPDTGWTMYPPLSSTSG 130
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:TIGR02891 131 SPGVGVDLWLLGLHLLGISSILGAVNFIVTILNMRAPGMTLMRMPLFVWGILVTSILILLAFPVLIAALILLLLDRLFGT 210
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLD 240
Cdd:TIGR02891 211 HFFDPARGGDPLLWQHLFWFFGHPEVYIIFLPAFGIISEILPTFARKPIFGYRAMVYATVAIGFLSFGVWAHHMFTTGMP 290
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  241 VDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFH 320
Cdd:TIGR02891 291 PLALAFFSAATMLIAVPTGVKVFNWIATLWGGSIRFTTPMLFALGFIFLFVIGGLTGVMLASVPLDWQLHDTYFVVAHFH 370
                         330       340       350       360       370       380       390
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 408722335  321 YVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDA--YIGWNLIAS 397
Cdd:TIGR02891 371 YVLVGGSVFAIFAAIYYWFPKVTGRMYNERLGRWHFWLTFVGFNLTFFPMHLLGLLGMPRRYYTYPPQmgFATLNLIST 449
CyoB COG0843
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
2-397 0e+00

Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];


Pssm-ID: 440605  Cd Length: 535  Bit Score: 531.24  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   2 TAHAFLMIFFMVMPvLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQSH 81
Cdd:COG0843   62 TMHGTIMIFFFATP-FLAGFGNYLVPLQIGARDMAFPRLNALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEAS 140
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  82 SGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNTS 161
Cdd:COG0843  141 PGVGVDLWLLGLALFGVGSILGGVNFIVTILKMRAPGMTLMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTH 220
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 162 FFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLDV 241
Cdd:COG0843  221 FFDPAGGGDPLLWQHLFWFFGHPEVYILILPAFGIVSEIIPTFSRKPLFGYKAMVLATVAIAFLSFLVWAHHMFTPGISP 300
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 242 DTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFHY 321
Cdd:COG0843  301 LVKAFFSIATMLIAVPTGVKVFNWIATMWRGRIRFTTPMLFALGFIILFVIGGLTGVMLASVPLDYQVHDTYFVVAHFHY 380
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 322 VLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYP--DAYIGWNLIAS 397
Cdd:COG0843  381 VLIGGVVFAFFAGLYYWFPKMTGRMLNERLGKIHFWLWFIGFNLTFFPMHILGLLGMPRRYATYPpePGWQPLNLIST 458
COX1 pfam00115
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ...
1-397 4.29e-126

Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key enzyme in aerobic metabolism. Proton pumping haem-copper oxidases represent the terminal, energy-transfer enzymes of respiratory chains in prokaryotes and eukaryotes. The CuB-haem a3 (or haem o) binuclear centre, associated with the largest subunit I of cytochrome c and ubiquinol oxidases (E.C:1.10.3.11), is directly involved in the coupling between dioxygen reduction and proton pumping. Some terminal oxidases generate a transmembrane proton gradient across the plasma membrane (prokaryotes) or the mitochondrial inner membrane (eukaryotes). The enzyme complex consists of 3-4 subunits (prokaryotes) up to 13 polypeptides (mammals) of which only the catalytic subunit (equivalent to mammalian subunit I (COXI) is found in all haem-copper respiratory oxidases. The presence of a bimetallic centre (formed by a high-spin haem and copper B) as well as a low-spin haem, both ligated to six conserved histidine residues near the outer side of four transmembrane spans within CO I is common to all family members.


Pssm-ID: 459678  Cd Length: 432  Bit Score: 370.36  E-value: 4.29e-126
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335    1 ITAHAFLMIFFMVMPVlIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAiveVGAGTGWTVYPPLsaiqs 80
Cdd:pfam00115  45 RTLHGNLMIFWFATPF-LFGFGNYLVPLMIGARDMAFPRLNALSFWLVVLGAVLLLASF---GGATTGWTEYPPL----- 115
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   81 hsgGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMyRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNt 160
Cdd:pfam00115 116 ---VGVDLWYIGLLLAGVSSLLGAINFIVTILKRRAPGMTL-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG- 190
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  161 sffdpAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLD 240
Cdd:pfam00115 191 -----AGGGDPLLDQHLFWWFGHPEVYILILPAFGIIYYILPKFAGRPLFGYKLSVLAFWLIAFLGFLVWAHHLFTTGLP 265
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  241 VDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHF-KTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:pfam00115 266 PWLQALFSVFSMLIAVPSGVKVFNWLATLWGGWIRFrTTPMLFFLGFAFLFIIGGLTGVMLALPPVNYYVHDTYFVVAHF 345
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIP----DYPDAYIGWNLI 395
Cdd:pfam00115 346 HYVLFGGVVFALFGGIYYWLPKLTGRMYSEKLGKLHFWLLFIGFNLTFFPMHILGLLGMPRRYAppfiETVPAFQPLNWI 425

                  ..
gi 408722335  396 AS 397
Cdd:pfam00115 426 RT 427
 
Name Accession Description Interval E-value
Cyt_c_Oxidase_I cd01663
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ...
1-397 0e+00

Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.


Pssm-ID: 238833  Cd Length: 488  Bit Score: 750.08  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:cd01663   49 VTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMAFPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILA 128
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:cd01663  129 HSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRAPGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNT 208
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:cd01663  209 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGIISHIISTFSgKKPVFGYLGMVYAMLSIGILGFIVWAHHMFTVGL 288
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:cd01663  289 DVDTRAYFTAATMIIAVPTGIKVFSWLATMWGGSIKFETPMLWALGFIFLFTIGGLTGVVLANSSLDIALHDTYYVVAHF 368
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:cd01663  369 HYVLSMGAVFAIFAGFYYWFPKITGLSYNETLGKIHFWLMFIGVNLTFFPQHFLGLAGMPRRYPDYPDAYAGWNMISS 446
COX1 MTH00153
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177210  Cd Length: 511  Bit Score: 685.06  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00153  56 VTAHAFIMIFFMVMPIMIGGFGNWLVPLMLGAPDMAFPRMNNMSFWLLPPSLTLLLSSSMVESGAGTGWTVYPPLSSNIA 135
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00153 136 HSGASVDLAIFSLHLAGISSILGAINFITTIINMRSKGMTLDRMPLFVWSVLITAILLLLSLPVLAGAITMLLTDRNLNT 215
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00153 216 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIISQESgKKETFGTLGMIYAMLAIGLLGFIVWAHHMFTVGM 295
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00153 296 DVDTRAYFTSATMIIAVPTGIKIFSWLATLHGSQINYSPSLLWALGFVFLFTIGGLTGVVLANSSIDIILHDTYYVVAHF 375
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00153 376 HYVLSMGAVFAIMGGFIHWFPLFTGLTMNPKWLKIQFFIMFIGVNLTFFPQHFLGLAGMPRRYSDYPDAYTSWNVISS 453
COX1 MTH00167
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177222  Cd Length: 512  Bit Score: 643.27  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00167  58 VTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSLLLLLASSGVEAGAGTGWTVYPPLAGNLA 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00167 138 HAGASVDLAIFSLHLAGVSSILGSINFITTIINMKPPGITQYQTPLFVWSILVTTILLLLSLPVLAAAITMLLTDRNLNT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00167 218 TFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIVVYYSgKKEPFGYMGMVWAMMAIGLLGFIVWAHHMFTVGM 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00167 298 DVDTRAYFTSATMIIAVPTGIKVFSWLATLHGGKIKWETPMLWALGFIFLFTVGGLTGIVLANSSLDIVLHDTYYVVAHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00167 378 HYVLSMGAVFAIMAGFTHWFPLFTGLTLNETWTKIHFFVMFIGVNLTFFPQHFLGLAGMPRRYSDYPDAYTLWNVVSS 455
COX1 MTH00223
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177260  Cd Length: 512  Bit Score: 636.25  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00223  55 VTAHAFVMIFFLVMPMMIGGFGNWLVPLMLGAPDMAFPRLNNMSFWLLPPSLYLLLSSSAVESGVGTGWTVYPPLSSNLA 134
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00223 135 HAGPSVDLAIFSLHLAGVSSILGAINFITTIINMRSPGMQLERLPLFVWSVKVTAFLLLLSLPVLAGAITMLLTDRNFNT 214
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRK-PVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00223 215 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIVSHYSSKkEVFGTLGMIYAMLSIGVLGFIVWAHHMFTVGM 294
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00223 295 DVDTRAYFTAATMIIAVPTGIKVFSWLATIYGSKIKYEAPMLWALGFIFLFTVGGLTGIILSNSSLDIMLHDTYYVVAHF 374
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00223 375 HYVLSMGAVFALFAGFNHWFPLFTGVTLHRRWAKAHFFLMFLGVNLTFFPQHFLGLAGMPRRYSDYPDCYTKWNQVSS 452
COX1 MTH00116
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177177  Cd Length: 515  Bit Score: 617.87  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00116  58 VTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSTVEAGAGTGWTVYPPLAGNLA 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00116 138 HAGASVDLAIFSLHLAGVSSILGAINFITTCINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00116 218 TFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGIISHIVTYYAgKKEPFGYMGMVWAMLSIGFLGFIVWAHHMFTVGM 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00116 298 DVDTRAYFTSATMIIAIPTGIKVFSWLATLHGGTIKWDPPMLWALGFIFLFTIGGLTGIVLANSSLDIVLHDTYYVVAHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00116 378 HYVLSMGAVFAIMAGFTHWFPLFTGYTLHQTWTKAQFGVMFTGVNLTFFPQHFLGLAGMPRRYSDYPDAYTLWNTISS 455
COX1 MTH00142
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 214431  Cd Length: 511  Bit Score: 607.88  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00142  56 VTAHAFVMIFFMVMPVMIGGFGNWLVPLMLGAPDMAFPRMNNMSFWLLPPALLLLLSSAAVESGAGTGWTVYPPLSSNLA 135
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00142 136 HSGGSVDLAIFSLHLAGVSSILGAINFITTVINMRAGGMKFERVPLFVWSVKITAILLLLSLPVLAGAITMLLTDRNFNT 215
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00142 216 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIINHYSgKKEVFGTLGMIYAMLSIGLLGFIVWAHHMFTVGM 295
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00142 296 DVDTRAYFTAATMVIAVPTGIKVFSWLATLHGSKVKYEPPMLWALGFIFLFTVGGLTGIVLANSSLDVVLHDTYYVVAHF 375
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00142 376 HYVLSMGAVFALFAGFIHWFPLFTGLTLNPRWLKAHFYTMFIGVNLTFFPQHFLGLAGMPRRYSDYPDAYTTWNVVSS 453
COX1 MTH00182
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 214451  Cd Length: 525  Bit Score: 590.25  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00182  60 VTAHAFIMIFFLVMPVMIGGFGNWLVPLYIGAPDMAFPRLNNISFWLLPPALILLLGSAFVEQGAGTGWTVYPPLSSIQA 139
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00182 140 HSGGAVDMAIFSLHLAGVSSILGAINFITTIFNMRAPGVTFNRLPLFVWSILITAFLLLLSLPVLAGAITMLLTDRNFNT 219
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00182 220 TFFDPAGGGDPILFQHLFWFFGHPEVYILILPGFGMISQIIPTFVaKKQIFGYLGMVYAMLSIGILGFIVWAHHMFTVGM 299
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00182 300 DVDTRAYFTAATMIIAVPTGIKVFSWLATIYGGTLRLDTPMLWAMGFVFLFTLGGLTGVVLANSSLDIVLHDTYYVVAHF 379
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00182 380 HYVLSMGAVFAIFGGFYYWFGKITGYCYNELYGKIHFWLMFIGVNLTFFPQHFLGLAGFPRRYSDFADAFAGWNLVSS 457
COX1 MTH00184
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177235  Cd Length: 519  Bit Score: 585.64  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00184  60 VTAHAFVMIFFLVMPVMIGGFGNWFVPLYIGAPDMAFPRLNNISFWLLPPALTLLLGSAFVEQGAGTGWTVYPPLSSIQA 139
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00184 140 HSGGSVDMAIFSLHLAGISSILGAMNFITTIFNMRAPGITMDRMPLFVWSILVTTFLLLLSLPVLAGAITMLLTDRNFNT 219
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00184 220 TFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGIISQIIPTFAaKKQIFGYLGMVYAMVSIGILGFIVWAHHMFTVGM 299
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00184 300 DVDTRAYFTAATMIIAVPTGIKIFSWIATIFGGSLRLDTPMLWAIGFVFLFTMGGLTGIVLANSSLDVVLHDTYYVVAHF 379
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00184 380 HYVLSMGAVFAIFGGFYYWFGKITGYCYNEVYGKIHFWLMFIGVNLTFFPQHFLGLAGLPRRYSDFHDSFAGWNQISS 457
COX1 MTH00037
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177112  Cd Length: 517  Bit Score: 557.52  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00037  58 VTAHALVMIFFMVMPIMIGGFGNWLIPLMIGAPDMAFPRMNNMSFWLIPPSFLLLLASAGVESGAGTGWTIYPPLSSNIA 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00037 138 HAGGSVDLAIFSLHLAGASSILASINFITTIINMRTPGMTFDRLPLFVWSVFITAFLLLLSLPVLAGAITMLLTDRNINT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRK-PVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00037 218 TFFDPAGGGDPILFQHLFWFFGHPEVYILILPGFGMISHVIAHYSGKqEPFGYLGMVYAMIAIGILGFLVWAHHMFTVGM 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00037 298 DVDTRAYFTAATMIIAVPTGIKVFSWMATLQGSNLRWETPLLWALGFVFLFTIGGLTGIVLANSSIDVVLHDTYYVVAHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00037 378 HYVLSMGAVFAIFAGFTHWFPLFSGVSLHPLWSKVHFFLMFIGVNLTFFPQHFLGLAGMPRRYSDYPDAYTLWNTVSS 455
COX1 MTH00183
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177234  Cd Length: 516  Bit Score: 549.14  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00183  58 VTAHAFVMIFFMVMPIMIGGFGNWLIPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLA 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00183 138 HAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAISQYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00183 218 TFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIVAYYSgKKEPFGYMGMVWAMMAIGLLGFIVWAHHMFTVGM 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00183 298 DVDTRAYFTSATMIIAIPTGVKVFSWLATLHGGSIKWETPLLWALGFIFLFTVGGLTGIVLANSSLDIVLHDTYYVVAHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00183 378 HYVLSMGAVFAIMAAFVHWFPLFSGYTLHSTWTKIHFGVMFVGVNLTFFPQHFLGLAGMPRRYSDYPDAYTLWNTVSS 455
COX1 MTH00007
cytochrome c oxidase subunit I; Validated
1-397 0e+00

cytochrome c oxidase subunit I; Validated


Pssm-ID: 133649  Cd Length: 511  Bit Score: 546.81  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00007  55 VTAHAFLMIFFLVMPVFIGGFGNWLVPLMLGAPDMAFPRLNNMSFWLLPPALILLVSSAAVEKGVGTGWTVYPPLASNLA 134
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00007 135 HAGPSVDLAIFSLHLAGVSSILGAINFITTVINMRWKGLRLERIPLFVWAVVITVVLLLLSLPVLAGAITMLLTDRNLNT 214
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKP-VFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00007 215 SFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGAISHIVTHYAGKLePFGTLGMIYAMLGIGVLGFIVWAHHMFTVGM 294
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00007 295 DVDTRAYFTAATMIIAVPTGIKVFSWLATIHGSPIKYETPMLWALGFIFLFTTGGLTGIVLSNSSLDIILHDTYYVVAHF 374
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00007 375 HYVLSMGAVFAIFAAFNHWFPLFTGLTLHDRWAKAHFFLMFLGVNLTFFPQHFLGLSGMPRRYSDYPDAYTKWNVVSS 452
COX1 MTH00103
cytochrome c oxidase subunit I; Validated
1-397 0e+00

cytochrome c oxidase subunit I; Validated


Pssm-ID: 177165  Cd Length: 513  Bit Score: 546.02  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00103  58 VTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLA 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00103 138 HAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00103 218 TFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGMISHIVTYYSgKKEPFGYMGMVWAMMSIGFLGFIVWAHHMFTVGM 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00103 298 DVDTRAYFTSATMIIAIPTGVKVFSWLATLHGGNIKWSPAMLWALGFIFLFTVGGLTGIVLANSSLDIVLHDTYYVVAHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00103 378 HYVLSMGAVFAIMGGFVHWFPLFSGYTLNDTWAKIHFTIMFVGVNMTFFPQHFLGLSGMPRRYSDYPDAYTTWNTVSS 455
COX1 MTH00077
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 214419  Cd Length: 514  Bit Score: 545.31  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00077  58 VTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLA 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00077 138 HAGASVDLTIFSLHLAGVSSILGAINFITTSINMKPPSMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00077 218 TFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMISHIVTYYSaKKEPFGYMGMVWAMMSIGLLGFIVWAHHMFTVDL 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00077 298 NVDTRAYFTSATMIIAIPTGVKVFSWLATMHGGAIKWDAAMLWALGFIFLFTVGGLTGIVLANSSLDIVLHDTYYVVAHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00077 378 HYVLSMGAVFAIMGGFVHWFPLFSGYTLHSTWSKIHFGVMFIGVNLTFFPQHFLGLAGMPRRYSDYPDAYTLWNTVSS 455
COX1 MTH00079
cytochrome c oxidase subunit I; Provisional
1-397 0e+00

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177148  Cd Length: 508  Bit Score: 538.50  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAiQS 80
Cdd:MTH00079  59 ITAHAILMIFFMVMPSMIGGFGNWMLPLMLGAPDMSFPRLNNLSFWLLPTSLFLILDSCFVDMGPGTSWTVYPPLST-LG 137
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00079 138 HPGSSVDLAIFSLHCAGISSILGGINFMVTTKNLRSSSISLEHMSLFVWTVFVTVFLLVLSLPVLAGAITMLLTDRNLNT 217
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00079 218 SFFDPSTGGNPLLYQHLFWFFGHPEVYILILPAFGIISQSTLYLTgKKEVFGSLGMVYAILSIGLIGCVVWAHHMYTVGM 297
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:MTH00079 298 DLDSRAYFTAATMVIAVPTGVKVFSWLATLFGMKMKFQPLLLWVLGFIFLFTIGGLTGVILSNSSLDIILHDTYYVVSHF 377
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00079 378 HYVLSLGAVFGIFTGISLWWPFMTGIVYDKLMMSAVFFLMFVGVNLTFFPLHFAGLHGMPRKYLDYPDVYSVWNVISS 455
CtaD_CoxA TIGR02891
cytochrome c oxidase, subunit I; This large family represents subunit I's (CtaD, CoxA, CaaA) ...
1-397 0e+00

cytochrome c oxidase, subunit I; This large family represents subunit I's (CtaD, CoxA, CaaA) of cytochrome c oxidases of bacterial origin. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits I-III form the functional core of the enzyme complex. Subunit I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit II and heme a of subunit I to the bimetallic center formed by heme a3 and copper B. This cytochrome c oxidase shows proton pump activity across the membrane in addition to the electron transfer. In the bacilli an apparent split (paralogism) has created a sister clade (TIGR02882) encoding subunits (QoxA) of the aa3-type quinone oxidase complex which reacts directly with quinones, bypassing the interaction with soluble cytochrome c. This model attempts to exclude these sequences, placing them between the trusted and noise cutoffs. These families, as well as archaeal and eukaryotic cytochrome c subunit I's are included within the superfamily model, pfam00115. [Energy metabolism, Electron transport]


Pssm-ID: 213748  Cd Length: 499  Bit Score: 537.19  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335    1 ITAHAFLMIFFMVMPVLiGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:TIGR02891  52 FTMHGTIMIFLFAIPIL-AGFGNYLLPLMIGARDMAFPRLNAFSYWLYLFGGLLLLASFFTGGAPDTGWTMYPPLSSTSG 130
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:TIGR02891 131 SPGVGVDLWLLGLHLLGISSILGAVNFIVTILNMRAPGMTLMRMPLFVWGILVTSILILLAFPVLIAALILLLLDRLFGT 210
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLD 240
Cdd:TIGR02891 211 HFFDPARGGDPLLWQHLFWFFGHPEVYIIFLPAFGIISEILPTFARKPIFGYRAMVYATVAIGFLSFGVWAHHMFTTGMP 290
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  241 VDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFH 320
Cdd:TIGR02891 291 PLALAFFSAATMLIAVPTGVKVFNWIATLWGGSIRFTTPMLFALGFIFLFVIGGLTGVMLASVPLDWQLHDTYFVVAHFH 370
                         330       340       350       360       370       380       390
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 408722335  321 YVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDA--YIGWNLIAS 397
Cdd:TIGR02891 371 YVLVGGSVFAIFAAIYYWFPKVTGRMYNERLGRWHFWLTFVGFNLTFFPMHLLGLLGMPRRYYTYPPQmgFATLNLIST 449
CyoB COG0843
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
2-397 0e+00

Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];


Pssm-ID: 440605  Cd Length: 535  Bit Score: 531.24  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   2 TAHAFLMIFFMVMPvLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQSH 81
Cdd:COG0843   62 TMHGTIMIFFFATP-FLAGFGNYLVPLQIGARDMAFPRLNALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEAS 140
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  82 SGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNTS 161
Cdd:COG0843  141 PGVGVDLWLLGLALFGVGSILGGVNFIVTILKMRAPGMTLMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTH 220
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 162 FFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLDV 241
Cdd:COG0843  221 FFDPAGGGDPLLWQHLFWFFGHPEVYILILPAFGIVSEIIPTFSRKPLFGYKAMVLATVAIAFLSFLVWAHHMFTPGISP 300
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 242 DTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFHY 321
Cdd:COG0843  301 LVKAFFSIATMLIAVPTGVKVFNWIATMWRGRIRFTTPMLFALGFIILFVIGGLTGVMLASVPLDYQVHDTYFVVAHFHY 380
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 322 VLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYP--DAYIGWNLIAS 397
Cdd:COG0843  381 VLIGGVVFAFFAGLYYWFPKMTGRMLNERLGKIHFWLWFIGFNLTFFPMHILGLLGMPRRYATYPpePGWQPLNLIST 458
Heme_Cu_Oxidase_I cd00919
Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in ...
1-397 0e+00

Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in the respiratory chains of prokaryotes and mitochondria which catalyze the reduction of O2 and simultaneously pump protons across the membrane. The superfamily is diverse in terms of electron donors, subunit composition, and heme types. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. It has been proposed that Archaea acquired heme-copper oxidases through gene transfer from Gram-positive bacteria. Membership in the superfamily is defined by subunit I, which contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme and a copper ion. It also contains a low-spin heme, believed to participate in the transfer of electrons to the binuclear center. Only subunit I is common to the entire superfamily. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from the electron donor on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I of cytochrome c oxidase (CcO) and ubiquinol oxidase. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electron transfer occurs in two segments: from the electron donor to the low-spin heme, and from the low-spin heme to the binuclear center. The first segment can be a multi-step process and varies among the different families, while the second segment, a direct transfer, is consistent throughout the superfamily.


Pssm-ID: 238461  Cd Length: 463  Bit Score: 530.18  E-value: 0e+00
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPiMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:cd00919   47 VTAHGVIMIFFFVMPAIFGGFGNLLPP-LIGARDLAFPRLNNLSFWLFPPGLLLLLSSVLVGGGAGTGWTFYPPLSTLSY 125
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:cd00919  126 SSGVGVDLAILGLHLAGVSSILGAINFITTILNMRAPGMTLDKMPLFVWSVLVTAILLLLALPVLAAALVMLLLDRNFGT 205
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLD 240
Cdd:cd00919  206 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPAFGAISEIIPTFSGKPLFGYKLMVYAFLAIGFLSFLVWAHHMFTVGLP 285
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 241 VDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFH 320
Cdd:cd00919  286 VDTRAYFTAATMIIAVPTGIKVFNWLATLWGGRIRFDPPMLFALGFLFLFTIGGLTGVVLANVPLDIVLHDTYYVVAHFH 365
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 408722335 321 YVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:cd00919  366 YVLSGGVVFAIFAGLYYWFPKMTGRMLSEKLGKIHFWLWFIGFNLTFFPMHFLGLLGMPRRYADYPDGFAPWNFISS 442
COX1 MTH00026
cytochrome c oxidase subunit I; Provisional
1-397 1.61e-180

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 164599  Cd Length: 534  Bit Score: 512.64  E-value: 1.61e-180
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQS 80
Cdd:MTH00026  59 VTAHAFVMIFFLVMPTMIGGFGNWFVPLMIGAPDMAFPRLNNISFWLLPPALFLLLGSSLVEQGAGTGWTVYPPLASIQA 138
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00026 139 HSGGSVDMAIFSLHLAGLSSILGAMNFITTVMNMRTPGMTMSRIPLFVWSVFITAILLLLSLPVLAGAITMLLTDRNFNT 218
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFS-RKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00026 219 TFFDPAGGGDPILYQHLFWFFGHPEVYILILPGFGIISQILSLFSyKKQIFGYLGMVYAMLAIGVLGFIVWAHHMYVVGM 298
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEG--SIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVA 317
Cdd:MTH00026 299 DVDTRAYFTAATMIIAVPTGIKIFSWLATVSGSgrNLIFTTPMAWALGFIFLFTIGGLTGIVLSNSSLDILLHDTYYVVA 378
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 318 HFHYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00026 379 HFHFVLSMGAVFAIFGGFYLWFGKITGYAYKDIYGLIHFWLMFIGVNITFFPQHFLGLAGLPRRYADYPDNFEDFNQISS 458
Ubiquinol_Oxidase_I cd01662
Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory ...
2-397 3.63e-170

Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory chains of aerobic bacteria, is a multi-chain transmembrane protein located in the cell membrane. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits in ubiquinol oxidase varies from two to five. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme and a copper ion. It also contains a low-spin heme, believed to participate in the transfer of electrons from ubiquinol to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from ubiquinol on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. It is generally believed that the channels contain water molecules that act as 'proton wires' to transfer the protons. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are believed to be transferred directly from ubiquinol (the electron donor) to the low-spin heme, and directly from the low-spin heme to the binuclear center.


Pssm-ID: 238832  Cd Length: 501  Bit Score: 485.16  E-value: 3.63e-170
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   2 TAHAFLMIFFMVMPVLIGgFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQSH 81
Cdd:cd01662   54 TMHGTIMIFLFAMPLVFG-LMNYLVPLQIGARDVAFPRLNALSFWLFLFGGLLLNASLLIGGFPDAGWFAYPPLSGLEYS 132
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  82 SGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNTS 161
Cdd:cd01662  133 PGVGVDYWILGLQFSGIGTLLGAINFIVTILKMRAPGMTLMRMPIFTWTTLVTSILILFAFPVLTAALALLELDRYFGTH 212
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 162 FFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLDV 241
Cdd:cd01662  213 FFTNALGGNPMLWQHLFWIFGHPEVYILILPAFGIFSEIVPTFSRKPLFGYRSMVYATVAIGFLSFGVWVHHMFTTGAGA 292
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 242 DTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFHY 321
Cdd:cd01662  293 LVNAFFSIATMIIAVPTGVKIFNWLFTMWRGRIRFETPMLWAIGFLVTFVIGGLTGVMLASPPADFQVHDTYFVVAHFHY 372
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 408722335 322 VLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYP--DAYIGWNLIAS 397
Cdd:cd01662  373 VLIGGVVFPLFAGFYYWFPKMFGRMLNERLGKWSFWLWFIGFNLTFFPMHILGLMGMPRRVYTYLpgPGWDPLNLIST 450
COX1 MTH00048
cytochrome c oxidase subunit I; Provisional
1-397 5.72e-138

cytochrome c oxidase subunit I; Provisional


Pssm-ID: 177123  Cd Length: 511  Bit Score: 403.67  E-value: 5.72e-138
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   1 ITAHAFLMIFFMVMPVLIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVevGAGTGWTVYPPLSAIQS 80
Cdd:MTH00048  59 ITNHGIIMIFFFLMPVLIGGFGNYLLPLLLGLSDLNLPRLNALSAWLLVPSIVFLLLSMCL--GAGVGWTFYPPLSSSLF 136
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  81 HSGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPgQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNT 160
Cdd:MTH00048 137 SSSWGVDFLMFSLHLAGVSSLFGSINFICTIYSAFMT-NVFSRTSIILWSYLFTSILLLLSLPVLAAAITMLLFDRNFGS 215
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 161 SFFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKP-VFGYIGMVYAMVSIGVLGFIVWAHHMYTVGL 239
Cdd:MTH00048 216 AFFDPLGGGDPVLFQHMFWFFGHPEVYVLILPGFGIISHICLSLSNNDdPFGYYGLVFAMFSIVCLGSVVWAHHMFTVGL 295
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 240 DVDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPML-FTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAH 318
Cdd:MTH00048 296 DVKTAVFFSSVTMIIGVPTGIKVFSWLYMLLNSRVRKSDPVVwWVVSFIVLFTIGGVTGIVLSASVLDNVLHDTWFVVAH 375
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 408722335 319 FHYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAYIGWNLIAS 397
Cdd:MTH00048 376 FHYVLSLGSYSSVVIMFIWWWPLITGLSLNKYLLQCHCIISMIGFNLCFFPMHYFGLCGLPRRVCVYEPSYYWINVVCT 454
CyoB TIGR02843
cytochrome o ubiquinol oxidase, subunit I; Cytochrome o terminal oxidase complex is the ...
2-388 3.94e-128

cytochrome o ubiquinol oxidase, subunit I; Cytochrome o terminal oxidase complex is the component of the aerobic respiratory chain which reacts with oxygen, reducing it to water with the concomitant transport of 4 protons across the membrane. Also known as the cytochrome bo complex, cytochrome o ubiquinol oxidase contains four subunits, two heme b cofactors and a copper atom which is believed to be the oxygen active site. This complex is structurally related to the cytochrome caa3 oxidases which utilize cytochrome c as the reductant and contain heme a cofactors, as well as the intermediate form aa3 oxidases which also react directly with quinones as the reductant. [Energy metabolism, Electron transport]


Pssm-ID: 131890  Cd Length: 646  Bit Score: 382.87  E-value: 3.94e-128
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335    2 TAHAFLMIFFMVMPVLIGGFgNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQSH 81
Cdd:TIGR02843 103 TAHGVIMIFFVAMPFVFGLM-NLVVPLQIGARDVAFPFLNSLSFWLTVVGAILVNVSLGVGEFAQTGWLAYPPLSELQYS 181
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   82 SGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNTS 161
Cdd:TIGR02843 182 PGVGVDYYIWALQISGIGTLLTGINFFVTIIKMRAPGMTLMKMPVFTWTSLCSNVLIIASFPILTVTLALLTLDRYLGMH 261
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  162 FFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLDV 241
Cdd:TIGR02843 262 FFTNEAGGNPMMYVNLIWAWGHPEVYILILPAFGIFSEVVATFSRKRLFGYTSMVWATIAITVLSFIVWLHHFFTMGAGA 341
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  242 DTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFHY 321
Cdd:TIGR02843 342 NVNAFFGIATMIIAIPTGVKIFNWLFTMYKGRIRFETPMLWTIGFMVTFSIGGMTGVLLAVPPADFVLHNSLFLIAHFHN 421
                         330       340       350       360       370       380
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 408722335  322 VLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDA 388
Cdd:TIGR02843 422 VIIGGVVFGCFAGLTYWFPKAFGFKLNEKLGKRSFWCWFIGFYLAFMPLYILGFMGMTRRLNHYDNP 488
COX1 pfam00115
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ...
1-397 4.29e-126

Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key enzyme in aerobic metabolism. Proton pumping haem-copper oxidases represent the terminal, energy-transfer enzymes of respiratory chains in prokaryotes and eukaryotes. The CuB-haem a3 (or haem o) binuclear centre, associated with the largest subunit I of cytochrome c and ubiquinol oxidases (E.C:1.10.3.11), is directly involved in the coupling between dioxygen reduction and proton pumping. Some terminal oxidases generate a transmembrane proton gradient across the plasma membrane (prokaryotes) or the mitochondrial inner membrane (eukaryotes). The enzyme complex consists of 3-4 subunits (prokaryotes) up to 13 polypeptides (mammals) of which only the catalytic subunit (equivalent to mammalian subunit I (COXI) is found in all haem-copper respiratory oxidases. The presence of a bimetallic centre (formed by a high-spin haem and copper B) as well as a low-spin haem, both ligated to six conserved histidine residues near the outer side of four transmembrane spans within CO I is common to all family members.


Pssm-ID: 459678  Cd Length: 432  Bit Score: 370.36  E-value: 4.29e-126
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335    1 ITAHAFLMIFFMVMPVlIGGFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAiveVGAGTGWTVYPPLsaiqs 80
Cdd:pfam00115  45 RTLHGNLMIFWFATPF-LFGFGNYLVPLMIGARDMAFPRLNALSFWLVVLGAVLLLASF---GGATTGWTEYPPL----- 115
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   81 hsgGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMyRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNt 160
Cdd:pfam00115 116 ---VGVDLWYIGLLLAGVSSLLGAINFIVTILKRRAPGMTL-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG- 190
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  161 sffdpAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLD 240
Cdd:pfam00115 191 -----AGGGDPLLDQHLFWWFGHPEVYILILPAFGIIYYILPKFAGRPLFGYKLSVLAFWLIAFLGFLVWAHHLFTTGLP 265
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  241 VDTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHF-KTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHF 319
Cdd:pfam00115 266 PWLQALFSVFSMLIAVPSGVKVFNWLATLWGGWIRFrTTPMLFFLGFAFLFIIGGLTGVMLALPPVNYYVHDTYFVVAHF 345
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  320 HYVLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIP----DYPDAYIGWNLI 395
Cdd:pfam00115 346 HYVLFGGVVFALFGGIYYWLPKLTGRMYSEKLGKLHFWLLFIGFNLTFFPMHILGLLGMPRRYAppfiETVPAFQPLNWI 425

                  ..
gi 408722335  396 AS 397
Cdd:pfam00115 426 RT 427
QoxB TIGR02882
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type ...
2-395 2.77e-109

cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type quinone oxidase, one of several bacterial terminal oxidases. This complex couples oxidation of reduced quinones with the reduction of molecular oxygen to water and the pumping of protons to form a proton gradient utilized for ATP production. aa3-type oxidases contain two heme a cofactors as well as copper atoms in the active site. [Energy metabolism, Electron transport]


Pssm-ID: 131928  Cd Length: 643  Bit Score: 334.51  E-value: 2.77e-109
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335    2 TAHAFLMIFFMVMPVLIGgFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQSH 81
Cdd:TIGR02882  97 TTHGVIMIIFMAMPFIIG-LMNIVVPLQIGARDVAFPVLNALSFWLFFAGAMLFNISFVIGGSPDAGWTNYAPLAGPEFS 175
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   82 SGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNTS 161
Cdd:TIGR02882 176 PGVGVNYYLIALQISGIGTLMTGINFFVTILKMRAPGMKLMQMPMFTWTTLITTLIIIFAFPVLTVALALMTTDRIFDTA 255
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  162 FFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLDV 241
Cdd:TIGR02882 256 FFTVAHGGMPMLWANLFWIWGHPEVYIVILPAFGIYSEIISTFAQKRLFGYKSMVWSTVGIAFLSFLVWVHHFFTMGNGA 335
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  242 DTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFHY 321
Cdd:TIGR02882 336 LINSFFSITTMAIAIPTGVKIFNWLLTLYKGKIRFTTPMLFSLAFIPNFLIGGVTGVMLAMASADYQYHNTYFLVAHFHY 415
                         330       340       350       360       370       380       390
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 408722335  322 VLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRIPDYPDAyIGWNLI 395
Cdd:TIGR02882 416 VLITGVVFACLAGLIYWYPKMFGYKLNERLGKWCFWFFMIGFNVCFFPMYILGLDGMPRRMYTYSPS-DGWFPL 488
PRK15017 PRK15017
cytochrome o ubiquinol oxidase subunit I; Provisional
2-382 1.44e-107

cytochrome o ubiquinol oxidase subunit I; Provisional


Pssm-ID: 184978  Cd Length: 663  Bit Score: 330.74  E-value: 1.44e-107
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335   2 TAHAFLMIFFMVMPVLIGgFGNWLVPIMIGSPDMAFPRLNNISFWLLPPSLCLLLTSAIVEVGAGTGWTVYPPLSAIQSH 81
Cdd:PRK15017 104 TAHGVIMIFFVAMPFVIG-LMNLVVPLQIGARDVAFPFLNNLSFWFTVVGVILVNVSLGVGEFAQTGWLAYPPLSGIEYS 182
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335  82 SGGAVDLAIFSLHISGASSILGAVNFISTILNMRNPGQTMYRMPLFVWSIFVTAFLLLLAVPVLAGAITMLLTDRNFNTS 161
Cdd:PRK15017 183 PGVGVDYWIWSLQLSGIGTTLTGINFFVTILKMRAPGMTMFKMPVFTWASLCANVLIIASFPILTVTVALLTLDRYLGTH 262
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 162 FFDPAGGGDPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYTVGLDV 241
Cdd:PRK15017 263 FFTNDMGGNMMMYINLIWAWGHPEVYILILPVFGVFSEIAATFSRKRLFGYTSLVWATVCITVLSFIVWLHHFFTMGAGA 342
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 242 DTRAYFTAATMIIAVPTGIKIFSWVATMWEGSIHFKTPMLFTIGFIFLFTIGGLTGIVLANSGLDISLHDTYYVVAHFHY 321
Cdd:PRK15017 343 NVNAFFGITTMIIAIPTGVKIFNWLFTMYQGRIVFHSAMLWTIGFIVTFSVGGMTGVLLAVPGADFVLHNSLFLIAHFHN 422
                        330       340       350       360       370       380
                 ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 408722335 322 VLSMGAVFAIFAGFYYWFGKITGLQYPETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRRI 382
Cdd:PRK15017 423 VIIGGVVFGCFAGMTYWWPKAFGFKLNETWGKRAFWFWIIGFFVAFMPLYALGFMGMTRRL 483
ba3-like_Oxidase_I cd01660
ba3-like heme-copper oxidase subunit I. The ba3 family of heme-copper oxidases are ...
170-387 1.31e-16

ba3-like heme-copper oxidase subunit I. The ba3 family of heme-copper oxidases are transmembrane protein complexes in the respiratory chains of prokaryotes and some archaea which catalyze the reduction of O2 and simultaneously pump protons across the membrane. It has been proposed that Archaea acquired heme-copper oxidases through gene transfer from Gram-positive bacteria. The ba3 family contains oxidases that lack the conserved residues that form the D- and K-pathways in CcO and ubiquinol oxidase. Instead they contain a potential alternative K-pathway. Additional proton channels have been proposed for this family of oxidases but none have been identified definitively. For general information on the heme-copper oxidase superfamily, please see cd00919.


Pssm-ID: 238830  Cd Length: 473  Bit Score: 81.18  E-value: 1.31e-16
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 170 DPVLYQHLFWFFGHPEVYILILPGFGMVSHIVSTFSRKPVFGYIGMVYAMVSIGVLGFIVWAHHMYT-VGLDVDTRAYFT 248
Cdd:cd01660  200 DVLLSRTLFWWFGHPLVYFWLLPAYIAWYTILPKIAGGKLFSDPLARLAFILFLLFSTPVGFHHQFAdPGIGPGWKFIHM 279
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 408722335 249 AATMIIAVPTGIKIFSWVATM--------------WEGSIHFKTPMLFTIGF-IFLFTIGGLTGIVLANSGLDISLHDTY 313
Cdd:cd01660  280 VLTFMVALPSLLTAFTVFASLeiagrlrggkglfgWIRALPWGDPMFLALFLaMLMFIPGGAGGIINASYQLNYVVHNTA 359
                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 408722335 314 YVVAHFHYVLSMGAVFAIFAGFYYWFGKITGLQYP-ETLGQIHFWSTFIGVNLTFMPMHFLGLAGMPRR--IPDYPD 387
Cdd:cd01660  360 WVPGHFHLTVGGAVALTFMAVAYWLVPHLTGRELAaKRLALAQPWLWFVGMTIMSTAMHVAGLLGAPRRtaEAQYGG 436
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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