NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|751143268|gb|AJF38989|]
View 

cytochrome b, partial (mitochondrion) [Sphenarium sp. Orth195_Oax7]

Protein Classification

cytochrome b( domain architecture ID 999997)

cytochrome b is a component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain; contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis

CATH:  1.20.810.10
Gene Symbol:  CYTB
Gene Ontology:  GO:0009055|GO:0046872|GO:0022904|GO:0005743|GO:0020037
PubMed:  2509716|8329437
SCOP:  4002208

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

 Name Accession Description Interval E-value
CYTB super family cl33360
cytochrome b; Provisional
 1-139 6.48e-95

cytochrome b; Provisional


The actual alignment was detected with superfamily member MTH00156:

Pssm-ID: 214440 [Multi-domain]  Cd Length: 356  Bit Score: 277.43  E-value: 6.48e-95
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00156 139 LLSAIPYLGTDLVQWIWGGFSVDNATLTRFFTFHFLLPFIILAMVMIHLLFLHQTGSNNPLGLNSNIDKIPFHPYFTFKD 218

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00156 219 LVGFIIMLMLLILLTLINPYLLGDPENFIPANPLVTPVHIQPEWYFLFAYAILRSIPNK 277
 
Name Accession Description Interval E-value
CYTB MTH00156
cytochrome b; Provisional
 1-139 6.48e-95

cytochrome b; Provisional


Pssm-ID: 214440 [Multi-domain]  Cd Length: 356  Bit Score: 277.43  E-value: 6.48e-95
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00156 139 LLSAIPYLGTDLVQWIWGGFSVDNATLTRFFTFHFLLPFIILAMVMIHLLFLHQTGSNNPLGLNSNIDKIPFHPYFTFKD 218

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00156 219 LVGFIIMLMLLILLTLINPYLLGDPENFIPANPLVTPVHIQPEWYFLFAYAILRSIPNK 277
QcrB/PetB COG1290
Cytochrome b subunit of the bc complex [Energy production and conversion];
1-138 3.66e-45

Cytochrome b subunit of the bc complex [Energy production and conversion];


Pssm-ID: 440901 [Multi-domain]  Cd Length: 393  Bit Score: 151.10  E-value: 3.66e-45
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFH-FVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEK----IPFHPY 75
Cdd:COG1290  160 LFGAIPVIGTWLVTWLFGGEFPGDATLNRFFALHvLLLPALLLALVVLHLWLLHRHGHNNPPGPERKKTEkvdgVPFHPY 239

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 751143268  76 FTFKDLITIILStsLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPN 138
Cdd:COG1290  240 YTVKDGFGFFVF--LGVFALLAFFFPINPPPNYGPANPLATPAHIQPDWYFLPFYGILRAIPG 300
cytochrome_b_C cd00290
Cytochrome b(C-terminus)/b6/petD: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit ...
 59-139 7.31e-29

Cytochrome b(C-terminus)/b6/petD: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit mitochondrial respiratory enzyme. Cytochrome b spans the mitochondrial membrane with 8 transmembrane helices (A-H) in eukaryotes. In plants and cyanobacteria, cytochrome b6 is analogous to eukaryote cytochrome b, containing two chains: helices A-D are encoded by the petB gene and helices E-H are encoded by the petD gene in these organisms. Cytochrome b/b6 contains two bound hemes and two ubiquinol/ubiquinone binding sites. The C-terminal domain is involved in forming the ubiquinol/ubiquinone binding sites, but not the heme binding sites. The N-terminal portion of cytochrome b, which contains both heme binding sites, is described in a separate CD.


Pssm-ID: 238179 [Multi-domain]  Cd Length: 147  Bit Score: 102.72  E-value: 7.31e-29
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268  59 NPLGINSNTEKIPFHPYFTFKDLITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPN 138
Cdd:cd00290    1 NPLGLASDMDKISFHPYFWPKDLLGAFPILIIFMILVFYAPNLLGHPDNGIPANPLATPLHILPEWYFLPVYAILRAIPN 80


                 .
gi 751143268 139 K 139
Cdd:cd00290   81 K 81
Cytochrom_B_N_2 pfam13631
Cytochrome b(N-terminal)/b6/petB;
1-105 5.71e-26

Cytochrome b(N-terminal)/b6/petB;


Pssm-ID: 433364  Cd Length: 169  Bit Score: 95.77  E-value: 5.71e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268    1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHF-VLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFK 79
Cdd:pfam13631  64 ILSSIPVVGTWLVWLLFGGPFPGTATIPRFYALHIlLLPGLILALIVAHLLLVEKHGQFPPPGTEKNVVGVPFWPVFAVK 143

                          90       100
                  ....*....|....*....|....*.
gi 751143268   80 DLITIILSTSLLIMLCLINPYLLGDP 105
Cdd:pfam13631 144 MLLFFLITVALLIGLAQINPIWLGGP 169
cytb6/f_IV TIGR01156
cytochrome b6/f complex subunit IV; This model describes the subunit IV of the cytochrome b6/f ...
 82-139 1.62e-07

cytochrome b6/f complex subunit IV; This model describes the subunit IV of the cytochrome b6/f complex. The cyt b6/f complex is central to the functions of the oxygenic phosynthetic electron transport in cyanobacteria and its equivalents in algae and higher plants. Energetically, on the redox scale the cytb6/f complex is placed below the other components - Q(A); Q(B) of the photosystem II in the Z-scheme, along the pathway of the electron transport. The complex is made of the following subunits: cytochrome f; cytochrome b6; Rieske 2Fe-2S; and subunits IV; V; VI; VII. Subunit IV is one of the principal subunits for the binding of the redox prosthetic groups. Each monomer of the complex contains a molecule of chlorophyll a and beta-carotene. [Energy metabolism, Electron transport, Energy metabolism, Photosynthesis]


Pssm-ID: 130224 [Multi-domain]  Cd Length: 159  Bit Score: 47.48  E-value: 1.62e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 751143268   82 ITIILSTSLLIMLCLINPYLLGDPdnfipANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:TIGR01156  42 VVILGTIACVVGLAVLDPAMIGEP-----ANPFATPLEILPEWYFYPVFQILRTVPNK 94
 
Name Accession Description Interval E-value
CYTB MTH00156
cytochrome b; Provisional
 1-139 6.48e-95

cytochrome b; Provisional


Pssm-ID: 214440 [Multi-domain]  Cd Length: 356  Bit Score: 277.43  E-value: 6.48e-95
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00156 139 LLSAIPYLGTDLVQWIWGGFSVDNATLTRFFTFHFLLPFIILAMVMIHLLFLHQTGSNNPLGLNSNIDKIPFHPYFTFKD 218

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00156 219 LVGFIIMLMLLILLTLINPYLLGDPENFIPANPLVTPVHIQPEWYFLFAYAILRSIPNK 277
CYTB MTH00145
cytochrome b; Provisional
 1-139 5.69e-83

cytochrome b; Provisional


Pssm-ID: 177203 [Multi-domain]  Cd Length: 379  Bit Score: 247.90  E-value: 5.69e-83
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00145 150 LLSAIPYVGKMLVEWVWGGFSVGNATLKRFFSLHFLLPFVILGLSVLHLLFLHETGSNNPLGLDSDGDKVPFHPYYTIKD 229

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00145 230 LVGFVVLLFLLVFLVLFFPNLLGDPENFIPANPMVTPVHIQPEWYFLFAYAILRSIPNK 288
CYTB MTH00191
cytochrome b; Provisional
 1-139 1.44e-82

cytochrome b; Provisional


Pssm-ID: 177239 [Multi-domain]  Cd Length: 365  Bit Score: 246.37  E-value: 1.44e-82
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00191 146 LLSAIPYIGDDLVQWLWGGFSVDNATLTRFFTFHFLLPFLIAALSLIHLLFLHETGSNNPLGLNSDSDKIPFHPYFSYKD 225

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00191 226 ILGFFILLFLLLFLVLFSPNLLGDPENFIPANPLVTPVHIKPEWYFLFAYAILRSIPNK 284
CYTB MTH00119
cytochrome b; Provisional
 1-139 3.54e-81

cytochrome b; Provisional


Pssm-ID: 214425 [Multi-domain]  Cd Length: 380  Bit Score: 243.27  E-value: 3.54e-81
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00119 150 LLSAIPYIGQTLVEWIWGGFSVDNPTLTRFFALHFLLPFLIAGLTLIHLLFLHETGSNNPLGLNSNTDKIPFHPYFSYKD 229

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00119 230 LLGLTLMLTLLLTLALFSPNLLGDPENFTPANPLVTPPHIKPEWYFLFAYAILRSIPNK 288
CYTB MTH00131
cytochrome b; Provisional
 1-139 1.47e-80

cytochrome b; Provisional


Pssm-ID: 177189 [Multi-domain]  Cd Length: 380  Bit Score: 241.87  E-value: 1.47e-80
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00131 149 LLSAVPYVGNTLVQWIWGGFSVDNATLTRFFAFHFLFPFVIAAATILHLLFLHETGSNNPLGLNSDADKISFHPYFSYKD 228

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00131 229 LLGFAILLLALTSLALFSPNLLGDPDNFTPANPLVTPPHIKPEWYFLFAYAILRSIPNK 287
CYTB MTH00074
cytochrome b; Provisional
 1-139 7.96e-80

cytochrome b; Provisional


Pssm-ID: 177145 [Multi-domain]  Cd Length: 380  Bit Score: 239.97  E-value: 7.96e-80
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00074 150 LLSAIPYMGDTLVQWIWGGFSVDKATLTRFFAFHFLLPFLIAGASIIHLLFLHETGSNNPTGLNSNPDKVPFHPYFSYKD 229

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00074 230 LLGFLIMLTALALLSLFSPNLLGDPDNFTPANPLVTPPHIQPEWYFLFAYAILRSIPNK 288
CYTB MTH00100
cytochrome b; Provisional
 1-139 2.87e-79

cytochrome b; Provisional


Pssm-ID: 177162 [Multi-domain]  Cd Length: 379  Bit Score: 238.38  E-value: 2.87e-79
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00100 149 LLSAIPYIGTTLVEWIWGGFSVDKATLTRFFAFHFILPFIITALAMVHLLFLHETGSNNPSGIPSDSDKIPFHPYYTIKD 228

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00100 229 ILGLLLLILTLMLLVLFSPDLLGDPDNYTPANPLNTPPHIKPEWYFLFAYAILRSIPNK 287
CYTB MTH00016
cytochrome b; Validated
 1-139 2.90e-78

cytochrome b; Validated


Pssm-ID: 177102 [Multi-domain]  Cd Length: 378  Bit Score: 236.11  E-value: 2.90e-78
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00016 150 LLSAIPYIGKMLVQWLWGGFSVDNATLTRFFALHFLLPFVIAALSMIHLLFLHQTGSNNPLGVNSNSDKVPFHPYYTSKD 229

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00016 230 IVGFIVMLFLLLSVVLLWPNILGDPENFIPANPLVTPTHIKPEWYFLWAYAILRSIPNK 288
CYTB MTH00034
cytochrome b; Validated
 1-139 5.31e-73

cytochrome b; Validated


Pssm-ID: 177109 [Multi-domain]  Cd Length: 379  Bit Score: 222.66  E-value: 5.31e-73
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00034 149 LVSAVPYIGTDIVQWIWGGFSVDNATLTRFFAFHFLFPFIIAALSIIHLLFLHQTGSNNPTGLNSNYDKVPFHTYFTTKD 228

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00034 229 LVGFLILFAALSSLALLFPTALNDPENFIPANPLVTPPHIQPEWYFLFAYAILRSIPNK 287
CYTB MTH00224
cytochrome b; Provisional
 1-139 4.57e-65

cytochrome b; Provisional


Pssm-ID: 164767 [Multi-domain]  Cd Length: 379  Bit Score: 202.46  E-value: 4.57e-65
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00224 150 LFSAIPYIGKDLVEWIWGGFAVDNATLNRFFSFHFLLPFAIMGATILHIMFLHQTGSNNPIGINADSARIPFHPYYSIKD 229

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00224 230 ALGYLIAILLLSLMVLFEPNLFTDPENFLMANPLVTPIHIKPEWYFLWMYAILRSIPNK 288
CYTB MTH00022
cytochrome b; Validated
 1-139 9.03e-64

cytochrome b; Validated


Pssm-ID: 164595 [Multi-domain]  Cd Length: 379  Bit Score: 198.77  E-value: 9.03e-64
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00022 148 LLSAIPYVGTDIVQWVWGGFSVSNATLNRFFSLHFLFPFILAFLVIVHLIYLHVDGSNNPIGLNSSVDKVSFHVYYTSKD 227

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00022 228 WYGIVVLFFLLSFIVYFAPNLLGDPENFIQANSLVTPVHIQPEWYFLFAYAILRSIPNK 286
CYTB MTH00053
cytochrome b; Provisional
 1-139 7.14e-63

cytochrome b; Provisional


Pssm-ID: 164624 [Multi-domain]  Cd Length: 381  Bit Score: 196.47  E-value: 7.14e-63
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00053 150 LLSAIPYVGDDIVRWVWGGFSVSNATLNRFYSLHYLLPFILAGLALVHLIALHEDGSNNPIGVRSDIDKIPFHYYYVLKD 229

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00053 230 LYGAVILLIILSIIVFLFPYSLGDAENFKQANPLVTPVHIKPEWYFLFAYAILRSIPNK 288
CYTB MTH00086
cytochrome b; Provisional
 1-139 1.85e-51

cytochrome b; Provisional


Pssm-ID: 177151 [Multi-domain]  Cd Length: 355  Bit Score: 166.65  E-value: 1.85e-51
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00086 138 LLSVIPIWGPSIVMWIWGGFGVSSATLKFFFVLHFLLPWGLLVLVLFHLIFLHSTGSTSSLYCHGDYDKICFGPEYWNKD 217

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268  81 LITIILSTsLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00086 218 AYNIIFWL-VFIIFSLFYPFNLGDPEMFIEADPMMSPVHIVPEWYFLFAYAILRAIPNK 275
QcrB/PetB COG1290
Cytochrome b subunit of the bc complex [Energy production and conversion];
1-138 3.66e-45

Cytochrome b subunit of the bc complex [Energy production and conversion];


Pssm-ID: 440901 [Multi-domain]  Cd Length: 393  Bit Score: 151.10  E-value: 3.66e-45
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFH-FVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEK----IPFHPY 75
Cdd:COG1290  160 LFGAIPVIGTWLVTWLFGGEFPGDATLNRFFALHvLLLPALLLALVVLHLWLLHRHGHNNPPGPERKKTEkvdgVPFHPY 239

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 751143268  76 FTFKDLITIILStsLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPN 138
Cdd:COG1290  240 YTVKDGFGFFVF--LGVFALLAFFFPINPPPNYGPANPLATPAHIQPDWYFLPFYGILRAIPG 300
CYTB MTH00033
cytochrome b; Provisional
 1-139 1.23e-44

cytochrome b; Provisional


Pssm-ID: 133672 [Multi-domain]  Cd Length: 383  Bit Score: 149.70  E-value: 1.23e-44
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFKD 80
Cdd:MTH00033 146 LVSAIPSVGGSIVEWIWGGFSVSNCTLNRFFSLHYLLPFVLVGLVLAHLLTLHEKGSNEPLGLVGLSDRTAFHVYFTIKD 225

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 751143268  81 LITIILSTSLLIMLClINPY---LLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00033 226 ILGFLILFGVFVIIG-IEPRietLLQDPENFIQANPLVTPVHIQPEWYFLFAYAILRSIPNK 286
CYTB MTH00046
cytochrome b; Validated
 1-139 1.02e-36

cytochrome b; Validated


Pssm-ID: 177121 [Multi-domain]  Cd Length: 355  Bit Score: 128.18  E-value: 1.02e-36
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSNNPLGI-NSNTEKIPFHPYFTFK 79
Cdd:MTH00046 140 IVDSVPIVGSLVYKYIVGGFSVTGVTLVRVFSVHICLGFVILGLMVVHLFYLHKSGSSNPLFSsNGYSDVVYFHSYFTVK 219

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268  80 DLITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:MTH00046 220 DLFLFMVVCSLLVFWLFVSPDLVLDIEAYLEADPLVTPVSIKPEWYFLAFYAMLRSINSK 279
cytochrome_b_C cd00290
Cytochrome b(C-terminus)/b6/petD: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit ...
 59-139 7.31e-29

Cytochrome b(C-terminus)/b6/petD: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit mitochondrial respiratory enzyme. Cytochrome b spans the mitochondrial membrane with 8 transmembrane helices (A-H) in eukaryotes. In plants and cyanobacteria, cytochrome b6 is analogous to eukaryote cytochrome b, containing two chains: helices A-D are encoded by the petB gene and helices E-H are encoded by the petD gene in these organisms. Cytochrome b/b6 contains two bound hemes and two ubiquinol/ubiquinone binding sites. The C-terminal domain is involved in forming the ubiquinol/ubiquinone binding sites, but not the heme binding sites. The N-terminal portion of cytochrome b, which contains both heme binding sites, is described in a separate CD.


Pssm-ID: 238179 [Multi-domain]  Cd Length: 147  Bit Score: 102.72  E-value: 7.31e-29
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268  59 NPLGINSNTEKIPFHPYFTFKDLITIILSTSLLIMLCLINPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPN 138
Cdd:cd00290    1 NPLGLASDMDKISFHPYFWPKDLLGAFPILIIFMILVFYAPNLLGHPDNGIPANPLATPLHILPEWYFLPVYAILRAIPN 80


                 .
gi 751143268 139 K 139
Cdd:cd00290   81 K 81
Cytochrom_B_N_2 pfam13631
Cytochrome b(N-terminal)/b6/petB;
1-105 5.71e-26

Cytochrome b(N-terminal)/b6/petB;


Pssm-ID: 433364  Cd Length: 169  Bit Score: 95.77  E-value: 5.71e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268    1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHF-VLPFLIAAFAAIHLFFLHQTGSNNPLGINSNTEKIPFHPYFTFK 79
Cdd:pfam13631  64 ILSSIPVVGTWLVWLLFGGPFPGTATIPRFYALHIlLLPGLILALIVAHLLLVEKHGQFPPPGTEKNVVGVPFWPVFAVK 143

                          90       100
                  ....*....|....*....|....*.
gi 751143268   80 DLITIILSTSLLIMLCLINPYLLGDP 105
Cdd:pfam13631 144 MLLFFLITVALLIGLAQINPIWLGGP 169
Cytochrome_b_N cd00284
Cytochrome b (N-terminus)/b6/petB: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit ...
 1-58 4.69e-20

Cytochrome b (N-terminus)/b6/petB: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit mitochondrial respiratory enzyme. Cytochrome b spans the mitochondrial membrane with 8 transmembrane helices (A-H) in eukaryotes. In plants and cyanobacteria, cytochrome b6 is analogous to eukaryote cytochrome b, containing two chains: helices A-D are encoded by the petB gene and helices E-H are encoded by the petD gene in these organisms. Cytochrome b/b6 contains two bound hemes and two ubiquinol/ubiquinone binding sites. The C-terminal portion of cytochrome b is described in a separate CD.


Pssm-ID: 238176  Cd Length: 200  Bit Score: 81.26  E-value: 4.69e-20
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*...
gi 751143268   1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTGSN 58
Cdd:cd00284  143 LFSAIPVIGITLVEWLWGGFSVDNATLTRFFALHFLLPFIIAVIVILHLLFLHEQGSS 200
Cytochrome_B pfam00033
Cytochrome b/b6/petB;
1-56 7.01e-19

Cytochrome b/b6/petB;


Pssm-ID: 306530  Cd Length: 189  Bit Score: 78.19  E-value: 7.01e-19
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 751143268    1 LLSAIPYMGTELVQWVWGGFAVDNATLNRFFTFHFVLPFLIAAFAAIHLFFLHQTG 56
Cdd:pfam00033 134 LLSAIPVIGDTLVEWIWGSFSVDQATLTRFFSLHFLLPFILAILMLLHLLFLHETG 189
Cytochrom_B_C pfam00032
Cytochrome b(C-terminal)/b6/petD;
110-139 1.35e-14

Cytochrome b(C-terminal)/b6/petD;


Pssm-ID: 459640 [Multi-domain]  Cd Length: 101  Bit Score: 64.81  E-value: 1.35e-14
                          10        20        30
                  ....*....|....*....|....*....|
gi 751143268  110 PANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:pfam00032   1 PANPLVTPAHIVPEWYFLPFYAILRSIPSK 30
PetD COG5679
Cytochrome b6f complex subunit IV, PetD, 17 kd cytochrome b [Energy production and conversion]; ...
 60-139 3.78e-09

Cytochrome b6f complex subunit IV, PetD, 17 kd cytochrome b [Energy production and conversion];


Pssm-ID: 444393 [Multi-domain]  Cd Length: 161  Bit Score: 52.10  E-value: 3.78e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268  60 PLGINSNTEKIPFHPYFTFKDLITIILST-SLLIMLCLINPYLLGDPdnfipANPLVTPIHIQPEWYFLFAYAILRSIPN 138
Cdd:COG5679   20 EKGMGHNYYGEPAWPNDLLYIFPVVILGTiALCIGLAVLDPAMMGEP-----ADPFATPLEILPEWYLYPVFQILRVVPN 94


                 .
gi 751143268 139 K 139
Cdd:COG5679   95 K 95
petD CHL00058
cytochrome b6/f complex subunit IV
 82-139 8.18e-08

cytochrome b6/f complex subunit IV


Pssm-ID: 176998  Cd Length: 160  Bit Score: 48.46  E-value: 8.18e-08
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*...
gi 751143268  82 ITIILSTSLLIMLCLINPYLLGDPdnfipANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:CHL00058  42 VVILGTIACNVGLAVLEPSMIGEP-----ADPFATPLEILPEWYFFPVFQILRTVPNK 94
petB CHL00070
cytochrome b6
 4-61 1.24e-07

cytochrome b6


Pssm-ID: 177009  Cd Length: 215  Bit Score: 48.56  E-value: 1.24e-07
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751143268   4 AIPYMGTELVQWVWGGFAVDNATLNRFFTFH-FVLPFLIAAFAAIHLFFLHQTGSNNPL 61
Cdd:CHL00070 157 AIPVIGSPLVELLRGSVSVGQSTLTRFYSLHtFVLPLLTAVFMLMHFLMIRKQGISGPL 215
cytb6/f_IV TIGR01156
cytochrome b6/f complex subunit IV; This model describes the subunit IV of the cytochrome b6/f ...
 82-139 1.62e-07

cytochrome b6/f complex subunit IV; This model describes the subunit IV of the cytochrome b6/f complex. The cyt b6/f complex is central to the functions of the oxygenic phosynthetic electron transport in cyanobacteria and its equivalents in algae and higher plants. Energetically, on the redox scale the cytb6/f complex is placed below the other components - Q(A); Q(B) of the photosystem II in the Z-scheme, along the pathway of the electron transport. The complex is made of the following subunits: cytochrome f; cytochrome b6; Rieske 2Fe-2S; and subunits IV; V; VI; VII. Subunit IV is one of the principal subunits for the binding of the redox prosthetic groups. Each monomer of the complex contains a molecule of chlorophyll a and beta-carotene. [Energy metabolism, Electron transport, Energy metabolism, Photosynthesis]


Pssm-ID: 130224 [Multi-domain]  Cd Length: 159  Bit Score: 47.48  E-value: 1.62e-07
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 751143268   82 ITIILSTSLLIMLCLINPYLLGDPdnfipANPLVTPIHIQPEWYFLFAYAILRSIPNK 139
Cdd:TIGR01156  42 VVILGTIACVVGLAVLDPAMIGEP-----ANPFATPLEILPEWYFYPVFQILRTVPNK 94
PRK03735 PRK03735
cytochrome b6; Provisional
 3-61 2.61e-07

cytochrome b6; Provisional


Pssm-ID: 179639  Cd Length: 223  Bit Score: 47.78  E-value: 2.61e-07
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 751143268   3 SAIPYMGTELVQWVWGGFAVDNATLNRFFTFH-FVLPFLIAAFAAIHLFFLHQTGSNNPL 61
Cdd:PRK03735 164 EAIPVIGDFIKTLLRGGEIVGAQTLTRFFAIHvFFLPWALAVLMLAHFLMIRKQGISGPL 223
 
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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH