|
Name |
Accession |
Description |
Interval |
E-value |
| COX1 |
MTH00116 |
cytochrome c oxidase subunit I; Provisional |
1-260 |
0e+00 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177177 Cd Length: 515 Bit Score: 536.98 E-value: 0e+00
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00116 4 TRWLFSTNHKDIGTLYLIFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00116 84 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSTVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGAIN 163
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00116 164 FITTCINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 243
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00116 244 YILILPGFGIISHIVTYYAG 263
|
|
| Cyt_c_Oxidase_I |
cd01663 |
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ... |
7-260 |
4.35e-161 |
|
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: 455.79 E-value: 4.35e-161
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 7 TNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGA 86
Cdd:cd01663 1 TNHKDIGTLYLIFGLWSGLVGTSLSLLIRLELSQPGSQLGNDQLYNVIVTAHALIMIFFMVMPALIGGFGNWLVPLMIGA 80
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 87 PDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTII 166
Cdd:cd01663 81 PDMAFPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILAHSGPSVDLAIFSLHLAGISSILGAINFITTIF 160
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 167 NMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYILILP 246
Cdd:cd01663 161 NMRAPGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFWFFGHPEVYILILP 240
|
250
....*....|....
gi 212725402 247 GFGMISHIVTYYSG 260
Cdd:cd01663 241 GFGIISHIISTFSG 254
|
|
| CtaD_CoxA |
TIGR02891 |
cytochrome c oxidase, subunit I; This large family represents subunit I's (CtaD, CoxA, CaaA) ... |
4-259 |
1.67e-96 |
|
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: 291.43 E-value: 1.67e-96
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 4 LFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMiGGFGNWLVPLM 83
Cdd:TIGR02891 1 LTTVDHKRIGILYLVTAFAFFLVGGVLALLMRAQLATPGNTFMDAETYNQLFTMHGTIMIFLFAIPIL-AGFGNYLLPLM 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 84 IGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFIT 163
Cdd:TIGR02891 80 IGARDMAFPRLNAFSYWLYLFGGLLLLASFFTGGAPDTGWTMYPPLSSTSGSPGVGVDLWLLGLHLLGISSILGAVNFIV 159
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 164 TIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYIL 243
Cdd:TIGR02891 160 TILNMRAPGMTLMRMPLFVWGILVTSILILLAFPVLIAALILLLLDRLFGTHFFDPARGGDPLLWQHLFWFFGHPEVYII 239
|
250
....*....|....*.
gi 212725402 244 ILPGFGMISHIVTYYS 259
Cdd:TIGR02891 240 FLPAFGIISEILPTFA 255
|
|
| CyoB |
COG0843 |
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion]; |
2-260 |
4.30e-95 |
|
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
Pssm-ID: 440605 Cd Length: 535 Bit Score: 288.95 E-value: 4.30e-95
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPiMIGGFGNWLVP 81
Cdd:COG0843 8 RWLTTVDHKRIGIMYLVTAFVFLLIGGLLALLMRLQLAGPGLGLLSPETYNQLFTMHGTIMIFFFATP-FLAGFGNYLVP 86
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:COG0843 87 LQIGARDMAFPRLNALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEASPGVGVDLWLLGLALFGVGSILGGVNF 166
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:COG0843 167 IVTILKMRAPGMTLMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTHFFDPAGGGDPLLWQHLFWFFGHPEVY 246
|
250
....*....|....*....
gi 212725402 242 ILILPGFGMISHIVTYYSG 260
Cdd:COG0843 247 ILILPAFGIVSEIIPTFSR 265
|
|
| COX1 |
pfam00115 |
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ... |
11-260 |
1.10e-59 |
|
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: 194.71 E-value: 1.10e-59
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 11 DIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPiMIGGFGNWLVPLMIGAPDMA 90
Cdd:pfam00115 1 RIGLLYLVTALVWFLVGGLLGLLIRLQLAFPGLNFLSPLTYNQLRTLHGNLMIFWFATP-FLFGFGNYLVPLMIGARDMA 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 91 FPRMNNMSFWLLPPSFLLLLASSMveaGAGTGWTVYPPLAGnlahagasVDLTIFSLHLAGVSSILGAINFITTIINMKP 170
Cdd:pfam00115 80 FPRLNALSFWLVVLGAVLLLASFG---GATTGWTEYPPLVG--------VDLWYIGLLLAGVSSLLGAINFIVTILKRRA 148
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 171 PAMSQyQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNttffdpAGGGDPILYQHLFWFFGHPEVYILILPGFGM 250
Cdd:pfam00115 149 PGMTL-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG------AGGGDPLLDQHLFWWFGHPEVYILILPAFGI 221
|
250
....*....|
gi 212725402 251 ISHIVTYYSG 260
Cdd:pfam00115 222 IYYILPKFAG 231
|
|
|
|
Name |
Accession |
Description |
Interval |
E-value |
| COX1 |
MTH00116 |
cytochrome c oxidase subunit I; Provisional |
1-260 |
0e+00 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177177 Cd Length: 515 Bit Score: 536.98 E-value: 0e+00
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00116 4 TRWLFSTNHKDIGTLYLIFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00116 84 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSTVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGAIN 163
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00116 164 FITTCINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 243
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00116 244 YILILPGFGIISHIVTYYAG 263
|
|
| COX1 |
MTH00153 |
cytochrome c oxidase subunit I; Provisional |
1-260 |
1.53e-178 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177210 Cd Length: 511 Bit Score: 500.94 E-value: 1.53e-178
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00153 2 NKWLFSTNHKDIGTLYFIFGAWSGMVGTSLSLLIRAELGQPGSLIGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLV 81
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00153 82 PLMLGAPDMAFPRMNNMSFWLLPPSLTLLLSSSMVESGAGTGWTVYPPLSSNIAHSGASVDLAIFSLHLAGISSILGAIN 161
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00153 162 FITTIINMRSKGMTLDRMPLFVWSVLITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFWFFGHPEV 241
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00153 242 YILILPGFGMISHIISQESG 261
|
|
| COX1 |
MTH00103 |
cytochrome c oxidase subunit I; Validated |
1-260 |
5.73e-178 |
|
cytochrome c oxidase subunit I; Validated
Pssm-ID: 177165 Cd Length: 513 Bit Score: 499.41 E-value: 5.73e-178
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00103 4 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00103 84 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 163
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00103 164 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 243
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00103 244 YILILPGFGMISHIVTYYSG 263
|
|
| COX1 |
MTH00077 |
cytochrome c oxidase subunit I; Provisional |
2-260 |
4.79e-174 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214419 Cd Length: 514 Bit Score: 489.45 E-value: 4.79e-174
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00077 5 RWLFSTNHKDIGTLYLVFGAWAGMVGTALSLLIRAELSQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 84
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00077 85 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 164
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00077 165 ITTSINMKPPSMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPVLYQHLFWFFGHPEVY 244
|
250
....*....|....*....
gi 212725402 242 ILILPGFGMISHIVTYYSG 260
Cdd:MTH00077 245 ILILPGFGMISHIVTYYSA 263
|
|
| COX1 |
MTH00183 |
cytochrome c oxidase subunit I; Provisional |
2-260 |
3.47e-173 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177234 Cd Length: 516 Bit Score: 487.51 E-value: 3.47e-173
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00183 5 RWFFSTNHKDIGTLYLVFGAWAGMVGTALSLLIRAELSQPGALLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLIP 84
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00183 85 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 164
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00183 165 ITTIINMKPPAISQYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 244
|
250
....*....|....*....
gi 212725402 242 ILILPGFGMISHIVTYYSG 260
Cdd:MTH00183 245 ILILPGFGMISHIVAYYSG 263
|
|
| COX1 |
MTH00167 |
cytochrome c oxidase subunit I; Provisional |
1-260 |
1.22e-168 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177222 Cd Length: 512 Bit Score: 475.71 E-value: 1.22e-168
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00167 4 NRWLFSTNHKDIGTLYFIFGAWAGMVGTALSLLIRAELSQPGSLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00167 84 PLMIGAPDMAFPRMNNMSFWLLPPSLLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGSIN 163
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00167 164 FITTIINMKPPGITQYQTPLFVWSILVTTILLLLSLPVLAAAITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 243
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00167 244 YILILPGFGMISHIVVYYSG 263
|
|
| Cyt_c_Oxidase_I |
cd01663 |
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ... |
7-260 |
4.35e-161 |
|
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: 455.79 E-value: 4.35e-161
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 7 TNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGA 86
Cdd:cd01663 1 TNHKDIGTLYLIFGLWSGLVGTSLSLLIRLELSQPGSQLGNDQLYNVIVTAHALIMIFFMVMPALIGGFGNWLVPLMIGA 80
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 87 PDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTII 166
Cdd:cd01663 81 PDMAFPRLNNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILAHSGPSVDLAIFSLHLAGISSILGAINFITTIF 160
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 167 NMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYILILP 246
Cdd:cd01663 161 NMRAPGMTLEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFWFFGHPEVYILILP 240
|
250
....*....|....
gi 212725402 247 GFGMISHIVTYYSG 260
Cdd:cd01663 241 GFGIISHIISTFSG 254
|
|
| COX1 |
MTH00142 |
cytochrome c oxidase subunit I; Provisional |
1-260 |
2.14e-154 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214431 Cd Length: 511 Bit Score: 439.54 E-value: 2.14e-154
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00142 2 MRWLFSTNHKDIGTLYFLFGAWAGMVGTGLSLLIRAELGQPGSLLGDDQLYNVIVTAHAFVMIFFMVMPVMIGGFGNWLV 81
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00142 82 PLMLGAPDMAFPRMNNMSFWLLPPALLLLLSSAAVESGAGTGWTVYPPLSSNLAHSGGSVDLAIFSLHLAGVSSILGAIN 161
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00142 162 FITTVINMRAGGMKFERVPLFVWSVKITAILLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFWFFGHPEV 241
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00142 242 YILILPGFGMISHIINHYSG 261
|
|
| COX1 |
MTH00223 |
cytochrome c oxidase subunit I; Provisional |
2-260 |
4.14e-154 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177260 Cd Length: 512 Bit Score: 439.03 E-value: 4.14e-154
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00223 2 RWLFSTNHKDIGTLYLIFGMWSGLVGTSLSLLIRAELGQPGALLGDDQLYNVIVTAHAFVMIFFLVMPMMIGGFGNWLVP 81
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00223 82 LMLGAPDMAFPRLNNMSFWLLPPSLYLLLSSSAVESGVGTGWTVYPPLSSNLAHAGPSVDLAIFSLHLAGVSSILGAINF 161
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00223 162 ITTIINMRSPGMQLERLPLFVWSVKVTAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLFWFFGHPEVY 241
|
250
....*....|....*....
gi 212725402 242 ILILPGFGMISHIVTYYSG 260
Cdd:MTH00223 242 ILILPGFGMISHIVSHYSS 260
|
|
| COX1 |
MTH00037 |
cytochrome c oxidase subunit I; Provisional |
1-260 |
3.30e-140 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177112 Cd Length: 517 Bit Score: 403.83 E-value: 3.30e-140
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLV 80
Cdd:MTH00037 4 SRWLFSTNHKDIGTLYLIFGAWAGMVGTAMSVIIRTELAQPGSLLQDDQIYNVIVTAHALVMIFFMVMPIMIGGFGNWLI 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:MTH00037 84 PLMIGAPDMAFPRMNNMSFWLIPPSFLLLLASAGVESGAGTGWTIYPPLSSNIAHAGGSVDLAIFSLHLAGASSILASIN 163
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:MTH00037 164 FITTIINMRTPGMTFDRLPLFVWSVFITAFLLLLSLPVLAGAITMLLTDRNINTTFFDPAGGGDPILFQHLFWFFGHPEV 243
|
250 260
....*....|....*....|
gi 212725402 241 YILILPGFGMISHIVTYYSG 260
Cdd:MTH00037 244 YILILPGFGMISHVIAHYSG 263
|
|
| COX1 |
MTH00007 |
cytochrome c oxidase subunit I; Validated |
2-260 |
1.35e-133 |
|
cytochrome c oxidase subunit I; Validated
Pssm-ID: 133649 Cd Length: 511 Bit Score: 386.56 E-value: 1.35e-133
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00007 2 RWLYSTNHKDIGTLYFILGVWGGLLGTSMSLLIRIELGQPGAFLGSDQLYNTIVTAHAFLMIFFLVMPVFIGGFGNWLVP 81
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00007 82 LMLGAPDMAFPRLNNMSFWLLPPALILLVSSAAVEKGVGTGWTVYPPLASNLAHAGPSVDLAIFSLHLAGVSSILGAINF 161
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00007 162 ITTVINMRWKGLRLERIPLFVWAVVITVVLLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLFWFFGHPEVY 241
|
250
....*....|....*....
gi 212725402 242 ILILPGFGMISHIVTYYSG 260
Cdd:MTH00007 242 ILILPGFGAISHIVTHYAG 260
|
|
| COX1 |
MTH00182 |
cytochrome c oxidase subunit I; Provisional |
2-259 |
3.35e-127 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214451 Cd Length: 525 Bit Score: 371.08 E-value: 3.35e-127
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00182 7 RWVFSTNHKDIGTLYLVFGAGAGMIGTAFSMLIRLELSAPGAMLGDDHLYNVIVTAHAFIMIFFLVMPVMIGGFGNWLVP 86
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00182 87 LYIGAPDMAFPRLNNISFWLLPPALILLLGSAFVEQGAGTGWTVYPPLSSIQAHSGGAVDMAIFSLHLAGVSSILGAINF 166
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00182 167 ITTIFNMRAPGVTFNRLPLFVWSILITAFLLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILFQHLFWFFGHPEVY 246
|
250
....*....|....*...
gi 212725402 242 ILILPGFGMISHIVTYYS 259
Cdd:MTH00182 247 ILILPGFGMISQIIPTFV 264
|
|
| COX1 |
MTH00184 |
cytochrome c oxidase subunit I; Provisional |
2-259 |
2.17e-126 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177235 Cd Length: 519 Bit Score: 368.77 E-value: 2.17e-126
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00184 7 RWLFSTNHKDIGTLYLLFGAFAGMIGTAFSMLIRLELSAPGSMLGDDHLYNVIVTAHAFVMIFFLVMPVMIGGFGNWFVP 86
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00184 87 LYIGAPDMAFPRLNNISFWLLPPALTLLLGSAFVEQGAGTGWTVYPPLSSIQAHSGGSVDMAIFSLHLAGISSILGAMNF 166
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00184 167 ITTIFNMRAPGITMDRMPLFVWSILVTTFLLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILYQHLFWFFGHPEVY 246
|
250
....*....|....*...
gi 212725402 242 ILILPGFGMISHIVTYYS 259
Cdd:MTH00184 247 ILILPGFGIISQIIPTFA 264
|
|
| COX1 |
MTH00079 |
cytochrome c oxidase subunit I; Provisional |
3-260 |
1.48e-118 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177148 Cd Length: 508 Bit Score: 348.21 E-value: 1.48e-118
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 3 WLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPL 82
Cdd:MTH00079 7 WLESSNHKDIGTLYFLFGLWSGMVGTSLSLIIRLELSKPGLLLGNGQLYNSVITAHAILMIFFMVMPSMIGGFGNWMLPL 86
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 83 MIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAgNLAHAGASVDLTIFSLHLAGVSSILGAINFI 162
Cdd:MTH00079 87 MLGAPDMSFPRLNNLSFWLLPTSLFLILDSCFVDMGPGTSWTVYPPLS-TLGHPGSSVDLAIFSLHCAGISSILGGINFM 165
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 163 TTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYI 242
Cdd:MTH00079 166 VTTKNLRSSSISLEHMSLFVWTVFVTVFLLVLSLPVLAGAITMLLTDRNLNTSFFDPSTGGNPLLYQHLFWFFGHPEVYI 245
|
250
....*....|....*...
gi 212725402 243 LILPGFGMISHIVTYYSG 260
Cdd:MTH00079 246 LILPAFGIISQSTLYLTG 263
|
|
| COX1 |
MTH00026 |
cytochrome c oxidase subunit I; Provisional |
2-259 |
2.09e-113 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 164599 Cd Length: 534 Bit Score: 336.22 E-value: 2.09e-113
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVP 81
Cdd:MTH00026 6 RWFFSCNHKDIGSLYLVFGALSGAIGTAFSMLIRLELSSPGSMLGDDHLYNVIVTAHAFVMIFFLVMPTMIGGFGNWFVP 85
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:MTH00026 86 LMIGAPDMAFPRLNNISFWLLPPALFLLLGSSLVEQGAGTGWTVYPPLASIQAHSGGSVDMAIFSLHLAGLSSILGAMNF 165
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:MTH00026 166 ITTVMNMRTPGMTMSRIPLFVWSVFITAILLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILYQHLFWFFGHPEVY 245
|
250
....*....|....*...
gi 212725402 242 ILILPGFGMISHIVTYYS 259
Cdd:MTH00026 246 ILILPGFGIISQILSLFS 263
|
|
| Heme_Cu_Oxidase_I |
cd00919 |
Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in ... |
9-260 |
8.84e-102 |
|
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: 304.07 E-value: 8.84e-102
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 9 HKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPlMIGAPD 88
Cdd:cd00919 1 HKDIGLLYLIFAFVALLLGGLLALLIRLELATPGSLFLDPQLYNQLVTAHGVIMIFFFVMPAIFGGFGNLLPP-LIGARD 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 89 MAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINM 168
Cdd:cd00919 80 LAFPRLNNLSFWLFPPGLLLLLSSVLVGGGAGTGWTFYPPLSTLSYSSGVGVDLAILGLHLAGVSSILGAINFITTILNM 159
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 169 KPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYILILPGF 248
Cdd:cd00919 160 RAPGMTLDKMPLFVWSVLVTAILLLLALPVLAAALVMLLLDRNFGTSFFDPAGGGDPVLYQHLFWFFGHPEVYILILPAF 239
|
250
....*....|..
gi 212725402 249 GMISHIVTYYSG 260
Cdd:cd00919 240 GAISEIIPTFSG 251
|
|
| CtaD_CoxA |
TIGR02891 |
cytochrome c oxidase, subunit I; This large family represents subunit I's (CtaD, CoxA, CaaA) ... |
4-259 |
1.67e-96 |
|
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: 291.43 E-value: 1.67e-96
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 4 LFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMiGGFGNWLVPLM 83
Cdd:TIGR02891 1 LTTVDHKRIGILYLVTAFAFFLVGGVLALLMRAQLATPGNTFMDAETYNQLFTMHGTIMIFLFAIPIL-AGFGNYLLPLM 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 84 IGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFIT 163
Cdd:TIGR02891 80 IGARDMAFPRLNAFSYWLYLFGGLLLLASFFTGGAPDTGWTMYPPLSSTSGSPGVGVDLWLLGLHLLGISSILGAVNFIV 159
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 164 TIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYIL 243
Cdd:TIGR02891 160 TILNMRAPGMTLMRMPLFVWGILVTSILILLAFPVLIAALILLLLDRLFGTHFFDPARGGDPLLWQHLFWFFGHPEVYII 239
|
250
....*....|....*.
gi 212725402 244 ILPGFGMISHIVTYYS 259
Cdd:TIGR02891 240 FLPAFGIISEILPTFA 255
|
|
| CyoB |
COG0843 |
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion]; |
2-260 |
4.30e-95 |
|
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
Pssm-ID: 440605 Cd Length: 535 Bit Score: 288.95 E-value: 4.30e-95
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 2 RWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPiMIGGFGNWLVP 81
Cdd:COG0843 8 RWLTTVDHKRIGIMYLVTAFVFLLIGGLLALLMRLQLAGPGLGLLSPETYNQLFTMHGTIMIFFFATP-FLAGFGNYLVP 86
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 82 LMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINF 161
Cdd:COG0843 87 LQIGARDMAFPRLNALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEASPGVGVDLWLLGLALFGVGSILGGVNF 166
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 162 ITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVY 241
Cdd:COG0843 167 IVTILKMRAPGMTLMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTHFFDPAGGGDPLLWQHLFWFFGHPEVY 246
|
250
....*....|....*....
gi 212725402 242 ILILPGFGMISHIVTYYSG 260
Cdd:COG0843 247 ILILPAFGIVSEIIPTFSR 265
|
|
| COX1 |
MTH00048 |
cytochrome c oxidase subunit I; Provisional |
3-260 |
2.23e-86 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177123 Cd Length: 511 Bit Score: 266.16 E-value: 2.23e-86
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 3 WLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPL 82
Cdd:MTH00048 7 WLFTLDHKRIGVIYTLLGVWSGFVGLSLSLLIRLNFLDPYYNVISLDVYNFLITNHGIIMIFFFLMPVLIGGFGNYLLPL 86
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 83 MIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVeaGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFI 162
Cdd:MTH00048 87 LLGLSDLNLPRLNALSAWLLVPSIVFLLLSMCL--GAGVGWTFYPPLSSSLFSSSWGVDFLMFSLHLAGVSSLFGSINFI 164
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 163 TTIINMKPPAMSqYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYI 242
Cdd:MTH00048 165 CTIYSAFMTNVF-SRTSIILWSYLFTSILLLLSLPVLAAAITMLLFDRNFGSAFFDPLGGGDPVLFQHMFWFFGHPEVYV 243
|
250
....*....|....*...
gi 212725402 243 LILPGFGMISHIVTYYSG 260
Cdd:MTH00048 244 LILPGFGIISHICLSLSN 261
|
|
| Ubiquinol_Oxidase_I |
cd01662 |
Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory ... |
3-260 |
1.69e-79 |
|
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: 247.88 E-value: 1.69e-79
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 3 WLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGgFGNWLVPL 82
Cdd:cd01662 1 WLTTVDHKRIGIMYIITAFVFFLRGGVDALLMRTQLALPGNDFLSPEHYNQIFTMHGTIMIFLFAMPLVFG-LMNYLVPL 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 83 MIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFI 162
Cdd:cd01662 80 QIGARDVAFPRLNALSFWLFLFGGLLLNASLLIGGFPDAGWFAYPPLSGLEYSPGVGVDYWILGLQFSGIGTLLGAINFI 159
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 163 TTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEVYI 242
Cdd:cd01662 160 VTILKMRAPGMTLMRMPIFTWTTLVTSILILFAFPVLTAALALLELDRYFGTHFFTNALGGNPMLWQHLFWIFGHPEVYI 239
|
250
....*....|....*...
gi 212725402 243 LILPGFGMISHIVTYYSG 260
Cdd:cd01662 240 LILPAFGIFSEIVPTFSR 257
|
|
| COX1 |
pfam00115 |
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ... |
11-260 |
1.10e-59 |
|
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: 194.71 E-value: 1.10e-59
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 11 DIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPiMIGGFGNWLVPLMIGAPDMA 90
Cdd:pfam00115 1 RIGLLYLVTALVWFLVGGLLGLLIRLQLAFPGLNFLSPLTYNQLRTLHGNLMIFWFATP-FLFGFGNYLVPLMIGARDMA 79
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 91 FPRMNNMSFWLLPPSFLLLLASSMveaGAGTGWTVYPPLAGnlahagasVDLTIFSLHLAGVSSILGAINFITTIINMKP 170
Cdd:pfam00115 80 FPRLNALSFWLVVLGAVLLLASFG---GATTGWTEYPPLVG--------VDLWYIGLLLAGVSSLLGAINFIVTILKRRA 148
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 171 PAMSQyQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNttffdpAGGGDPILYQHLFWFFGHPEVYILILPGFGM 250
Cdd:pfam00115 149 PGMTL-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG------AGGGDPLLDQHLFWWFGHPEVYILILPAFGI 221
|
250
....*....|
gi 212725402 251 ISHIVTYYSG 260
Cdd:pfam00115 222 IYYILPKFAG 231
|
|
| QoxB |
TIGR02882 |
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type ... |
1-259 |
8.73e-54 |
|
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: 183.90 E-value: 8.73e-54
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGgFGNWLV 80
Cdd:TIGR02882 42 NEWLTTVDHKKIGVMYIICAVLMLFRGGIDALLMRAQLTVPDNKFLDAQHYNEIFTTHGVIMIIFMAMPFIIG-LMNIVV 120
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 81 PLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAIN 160
Cdd:TIGR02882 121 PLQIGARDVAFPVLNALSFWLFFAGAMLFNISFVIGGSPDAGWTNYAPLAGPEFSPGVGVNYYLIALQISGIGTLMTGIN 200
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 161 FITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFGHPEV 240
Cdd:TIGR02882 201 FFVTILKMRAPGMKLMQMPMFTWTTLITTLIIIFAFPVLTVALALMTTDRIFDTAFFTVAHGGMPMLWANLFWIWGHPEV 280
|
250
....*....|....*....
gi 212725402 241 YILILPGFGMISHIVTYYS 259
Cdd:TIGR02882 281 YIVILPAFGIYSEIISTFA 299
|
|
| PRK15017 |
PRK15017 |
cytochrome o ubiquinol oxidase subunit I; Provisional |
1-259 |
1.43e-50 |
|
cytochrome o ubiquinol oxidase subunit I; Provisional
Pssm-ID: 184978 Cd Length: 663 Bit Score: 175.51 E-value: 1.43e-50
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 1 NRWLFSTNHKDIGTLYLLFGAWAGMVGTALSLLIR-----AELGQPGTLlgDDQIYNVIVTAHAFVMIFFMVMPIMIGgF 75
Cdd:PRK15017 46 KEWLTSVDHKRLGIMYIIVAIVMLLRGFADAIMMRsqqalASAGEAGFL--PPHHYDQIFTAHGVIMIFFVAMPFVIG-L 122
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 76 GNWLVPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSI 155
Cdd:PRK15017 123 MNLVVPLQIGARDVAFPFLNNLSFWFTVVGVILVNVSLGVGEFAQTGWLAYPPLSGIEYSPGVGVDYWIWSLQLSGIGTT 202
|
170 180 190 200 210 220 230 240
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 212725402 156 LGAINFITTIINMKPPAMSQYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFF 235
Cdd:PRK15017 203 LTGINFFVTILKMRAPGMTMFKMPVFTWASLCANVLIIASFPILTVTVALLTLDRYLGTHFFTNDMGGNMMMYINLIWAW 282
|
250 260
....*....|....*....|....
gi 212725402 236 GHPEVYILILPGFGMISHIVTYYS 259
Cdd:PRK15017 283 GHPEVYILILPVFGVFSEIAATFS 306
|
|
|