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Conserved domains on  [gi|7715713|gb|AAF68150|]
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cytochrome b, partial (mitochondrion) [Grallaria guatimalensis]

Protein Classification

cytochrome b family protein( domain architecture ID 581032)

cytochrome b family protein such as formate dehydrogenase subunit gamma or cytochrome b, a component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), a respiratory chain that generates an electrochemical potential coupled to ATP synthesis.

Gene Ontology:  GO:0046872|GO:0016491

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
Cytochrome_b_N super family cl23723
Cytochrome b (N-terminus)/b6/petB: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit ...
 1-125 1.20e-83

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.


The actual alignment was detected with superfamily member MTH00119:

Pssm-ID: 474033 [Multi-domain]  Cd Length: 380  Bit Score: 249.05  E-value: 1.20e-83
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00119 256 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVLALAASILILFLMPFLHTSKQRSMTFRPLSQLLFWTLVANLLI 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILNL 125
Cdd:MTH00119 336 LTWIGSQPVEHPFIIIGQLASILYFTILLILFPLLGALENKMLNY 380
 
Name Accession Description Interval E-value
CYTB MTH00119
cytochrome b; Provisional
 1-125 1.20e-83

cytochrome b; Provisional


Pssm-ID: 214425 [Multi-domain]  Cd Length: 380  Bit Score: 249.05  E-value: 1.20e-83
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00119 256 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVLALAASILILFLMPFLHTSKQRSMTFRPLSQLLFWTLVANLLI 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILNL 125
Cdd:MTH00119 336 LTWIGSQPVEHPFIIIGQLASILYFTILLILFPLLGALENKMLNY 380
Cytochrom_B_C pfam00032
Cytochrome b(C-terminal)/b6/petD;
4-104 4.64e-49

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


Pssm-ID: 459640 [Multi-domain]  Cd Length: 101  Bit Score: 151.86  E-value: 4.64e-49
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713      4 PANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLILTW 83
Cdd:pfam00032   1 PANPLVTPAHIVPEWYFLPFYAILRSIPSKLGGVIAMGAAILILFLLPWLDRSPVRSIRYRPLFKIFFWLFVVDFVVLGW 80

                          90       100
                  ....*....|....*....|.
gi 7715713     84 VGSQPVEHPFIIIGQLASISY 104
Cdd:pfam00032  81 LGKQPPTGPYTLLGQIATVYY 101
cytochrome_b_C cd00290
Cytochrome b(C-terminus)/b6/petD: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit ...
 1-100 6.87e-38

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: 125.07  E-value: 6.87e-38
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713    1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTmTFRPLSQLMFWALVSNLLI 80
Cdd:cd00290  49 NGIPANPLATPLHILPEWYFLPVYAILRAIPNKLLGVLAMAASILSLFLVPFLENSNKRS-QFRPLRPTAFWVFLAGTLV 127

                        90       100
                ....*....|....*....|
gi 7715713   81 LTWVGSQPVEHPFIIIGQLA 100
Cdd:cd00290 128 LGWLGIQPVEYPFSLILQLF 147
QcrB/PetB COG1290
Cytochrome b subunit of the bc complex [Energy production and conversion];
1-119 5.39e-33

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


Pssm-ID: 440901 [Multi-domain]  Cd Length: 393  Bit Score: 118.74  E-value: 5.39e-33
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713    1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIP--NKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNL 78
Cdd:COG1290 269 NYGPANPLATPAHIQPDWYFLPFYGILRAIPgsAKLGGVIAMGLAILVLFLLPFLDRSPVRSPRYRPVRTALGVAFIVFF 348

                        90       100       110       120
                ....*....|....*....|....*....|....*....|.
gi 7715713   79 LILTWVGSQPVehPFIIIGQLASISYFTILLILFPAIGALE 119
Cdd:COG1290 349 IVLTILGANPP--IATLLGSINTVTYFAFFLIVLPILAFIE 387
cytb6/f_IV TIGR01156
cytochrome b6/f complex subunit IV; This model describes the subunit IV of the cytochrome b6/f ...
 4-71 1.77e-10

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: 55.19  E-value: 1.77e-10
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 7715713      4 PANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTF-RPLSQLMF 71
Cdd:TIGR01156  65 PANPFATPLEILPEWYFYPVFQILRTVPNKLLGVLLMAAVPAGLLTVPFIENVNKFQNPFrRPVATTVF 133
 
Name Accession Description Interval E-value
CYTB MTH00119
cytochrome b; Provisional
 1-125 1.20e-83

cytochrome b; Provisional


Pssm-ID: 214425 [Multi-domain]  Cd Length: 380  Bit Score: 249.05  E-value: 1.20e-83
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00119 256 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVLALAASILILFLMPFLHTSKQRSMTFRPLSQLLFWTLVANLLI 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILNL 125
Cdd:MTH00119 336 LTWIGSQPVEHPFIIIGQLASILYFTILLILFPLLGALENKMLNY 380
CYTB MTH00131
cytochrome b; Provisional
 1-124 1.69e-73

cytochrome b; Provisional


Pssm-ID: 177189 [Multi-domain]  Cd Length: 380  Bit Score: 223.38  E-value: 1.69e-73
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00131 255 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVLALLFSILVLMVVPILHTSKQRGLTFRPLTQFLFWTLVADVLI 334

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILN 124
Cdd:MTH00131 335 LTWIGGMPVEHPFIIIGQVASVLYFSLFLVLMPLAGWLENKALE 378
CYTB MTH00100
cytochrome b; Provisional
 1-123 2.96e-73

cytochrome b; Provisional


Pssm-ID: 177162 [Multi-domain]  Cd Length: 379  Bit Score: 222.59  E-value: 2.96e-73
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00100 255 NYTPANPLNTPPHIKPEWYFLFAYAILRSIPNKLGGVLALLLSILILAIIPLLHTSKQRSMMFRPLSQCLFWLLVADLLT 334

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKIL 123
Cdd:MTH00100 335 LTWIGGQPVEHPFIIIGQLASILYFLIILILMPIASLIENNLL 377
CYTB MTH00074
cytochrome b; Provisional
 1-125 1.42e-70

cytochrome b; Provisional


Pssm-ID: 177145 [Multi-domain]  Cd Length: 380  Bit Score: 215.70  E-value: 1.42e-70
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00074 256 NFTPANPLVTPPHIQPEWYFLFAYAILRSIPNKLGGVLALLASILILMLIPMLHTSKQRSLMFRPLTQILFWLLVANTLI 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILNL 125
Cdd:MTH00074 336 LTWIGGQPVEDPFIEIGQAASILYFLLFIIIIPLTGWLENKLLKW 380
CYTB MTH00034
cytochrome b; Validated
 1-124 2.41e-63

cytochrome b; Validated


Pssm-ID: 177109 [Multi-domain]  Cd Length: 379  Bit Score: 197.24  E-value: 2.41e-63
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00034 255 NFIPANPLVTPPHIQPEWYFLFAYAILRSIPNKLGGVIALVAAILVLFLVPILHTSNNQSSTFRPLSQIAFWLLIATFFI 334

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILN 124
Cdd:MTH00034 335 LTWIGSQPVEYPFILLGQVASVLYFSLFLFFFPLISYLENKLIF 378
CYTB MTH00191
cytochrome b; Provisional
 1-113 1.75e-62

cytochrome b; Provisional


Pssm-ID: 177239 [Multi-domain]  Cd Length: 365  Bit Score: 194.36  E-value: 1.75e-62
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00191 252 NFIPANPLVTPVHIKPEWYFLFAYAILRSIPNKLGGVLALVMSILVLFLLPLLHTSKQRSNTFRPLTQVVFWLWVANFIL 331

                         90       100       110
                 ....*....|....*....|....*....|...
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFP 113
Cdd:MTH00191 332 LTWLGGQPVEDPFILLGQISSFLYFFLFLLLFP 364
CYTB MTH00053
cytochrome b; Provisional
 1-125 2.83e-57

cytochrome b; Provisional


Pssm-ID: 164624 [Multi-domain]  Cd Length: 381  Bit Score: 181.83  E-value: 2.83e-57
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00053 256 NFKQANPLVTPVHIKPEWYFLFAYAILRSIPNKLGGVVALVFSILVLFFLPYLHKSRFRGLSFRPLSKILFWFLVGDFFL 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILNL 125
Cdd:MTH00053 336 LTWIGGQPVEEPYILIGQIASIFYFAYFLILMPLAGYLENKLLKL 380
CYTB MTH00145
cytochrome b; Provisional
 1-123 5.10e-57

cytochrome b; Provisional


Pssm-ID: 177203 [Multi-domain]  Cd Length: 379  Bit Score: 180.87  E-value: 5.10e-57
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00145 256 NFIPANPMVTPVHIQPEWYFLFAYAILRSIPNKLGGVIALVMSIVILFFLPLLHVGKFRSLSFYPLNQVLFWIFVGNFFI 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILfPAIGALENKIL 123
Cdd:MTH00145 336 LTWIGACPVEEPYETIGQVFTVLYFLFFLIL-PLVQKLWDNIL 377
CYTB MTH00156
cytochrome b; Provisional
 1-112 2.70e-55

cytochrome b; Provisional


Pssm-ID: 214440 [Multi-domain]  Cd Length: 356  Bit Score: 175.74  E-value: 2.70e-55
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00156 245 NFIPANPLVTPVHIQPEWYFLFAYAILRSIPNKLGGVIALVMSILILMILPFTNKSKFRGNQFYPINKILFWIFVNIVIL 324

                         90       100       110
                 ....*....|....*....|....*....|..
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILF 112
Cdd:MTH00156 325 LTWIGARPVEEPYILTGQILTILYFLYFIINP 356
CYTB MTH00022
cytochrome b; Validated
 1-124 9.35e-54

cytochrome b; Validated


Pssm-ID: 164595 [Multi-domain]  Cd Length: 379  Bit Score: 172.58  E-value: 9.35e-54
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00022 254 NFIQANSLVTPVHIQPEWYFLFAYAILRSIPNKLGGVVAMFFSILILFFLPLLHTSWLRGLTFRPLGRMAFWFLIVDFIL 333

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILFPAIGALENKILN 124
Cdd:MTH00022 334 LTWIGSQVVEEPFILIGQLLSFFYFFYFLVLIPLLGELENQLLF 377
CYTB MTH00016
cytochrome b; Validated
 1-111 1.99e-49

cytochrome b; Validated


Pssm-ID: 177102 [Multi-domain]  Cd Length: 378  Bit Score: 161.38  E-value: 1.99e-49
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00016 256 NFIPANPLVTPTHIKPEWYFLWAYAILRSIPNKLGGVVAMFASILILFFLPFIFKQKFRGLSFYPLNQILFWLLVSNFLL 335

                         90       100       110
                 ....*....|....*....|....*....|.
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLIL 111
Cdd:MTH00016 336 LTWIGGRPVEPPYEFLGQIFTVFYFFYFMIN 366
Cytochrom_B_C pfam00032
Cytochrome b(C-terminal)/b6/petD;
4-104 4.64e-49

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


Pssm-ID: 459640 [Multi-domain]  Cd Length: 101  Bit Score: 151.86  E-value: 4.64e-49
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713      4 PANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLILTW 83
Cdd:pfam00032   1 PANPLVTPAHIVPEWYFLPFYAILRSIPSKLGGVIAMGAAILILFLLPWLDRSPVRSIRYRPLFKIFFWLFVVDFVVLGW 80

                          90       100
                  ....*....|....*....|.
gi 7715713     84 VGSQPVEHPFIIIGQLASISY 104
Cdd:pfam00032  81 LGKQPPTGPYTLLGQIATVYY 101
CYTB MTH00224
cytochrome b; Provisional
 1-124 2.82e-43

cytochrome b; Provisional


Pssm-ID: 164767 [Multi-domain]  Cd Length: 379  Bit Score: 145.45  E-value: 2.82e-43
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00224 256 NFLMANPLVTPIHIKPEWYFLWMYAILRSIPNKLGGVVALFAAILILFILPLTSVMNKRSLPFYPLNQLLFWLLVTSWAI 335

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTiLLILFPAIGALENKILN 124
Cdd:MTH00224 336 LTWIGGRPVEDPFEGIGQVFTILYFS-YFIISPAISKLWDDLLN 378
CYTB MTH00033
cytochrome b; Provisional
 1-120 5.27e-38

cytochrome b; Provisional


Pssm-ID: 133672 [Multi-domain]  Cd Length: 383  Bit Score: 131.60  E-value: 5.27e-38
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00033 254 NFIQANPLVTPVHIQPEWYFLFAYAILRSIPNKLGGVLALFASILVLLLMPILDRSKIRSLTFNPTGKFFFWFIVGDFII 333

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 7715713    81 LTWVGSQPV-EHPFIIIGQLASISYFTILLILFPAIGALEN 120
Cdd:MTH00033 334 LTWIGSAPAgADPYVLIGRIATIFYFGYFLVLVPLLGYLSN 374
cytochrome_b_C cd00290
Cytochrome b(C-terminus)/b6/petD: Cytochrome b is a subunit of cytochrome bc1, an 11-subunit ...
 1-100 6.87e-38

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: 125.07  E-value: 6.87e-38
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713    1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTmTFRPLSQLMFWALVSNLLI 80
Cdd:cd00290  49 NGIPANPLATPLHILPEWYFLPVYAILRAIPNKLLGVLAMAASILSLFLVPFLENSNKRS-QFRPLRPTAFWVFLAGTLV 127

                        90       100
                ....*....|....*....|
gi 7715713   81 LTWVGSQPVEHPFIIIGQLA 100
Cdd:cd00290 128 LGWLGIQPVEYPFSLILQLF 147
QcrB/PetB COG1290
Cytochrome b subunit of the bc complex [Energy production and conversion];
1-119 5.39e-33

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


Pssm-ID: 440901 [Multi-domain]  Cd Length: 393  Bit Score: 118.74  E-value: 5.39e-33
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713    1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIP--NKLGGVMALAASVLVLFLIPFLHKSKQRTMTFRPLSQLMFWALVSNL 78
Cdd:COG1290 269 NYGPANPLATPAHIQPDWYFLPFYGILRAIPgsAKLGGVIAMGLAILVLFLLPFLDRSPVRSPRYRPVRTALGVAFIVFF 348

                        90       100       110       120
                ....*....|....*....|....*....|....*....|.
gi 7715713   79 LILTWVGSQPVehPFIIIGQLASISYFTILLILFPAIGALE 119
Cdd:COG1290 349 IVLTILGANPP--IATLLGSINTVTYFAFFLIVLPILAFIE 387
CYTB MTH00086
cytochrome b; Provisional
 1-112 1.94e-26

cytochrome b; Provisional


Pssm-ID: 177151 [Multi-domain]  Cd Length: 355  Bit Score: 100.78  E-value: 1.94e-26
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     1 NFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSkqrTMTFRPLSQLMFWALVSNLLI 80
Cdd:MTH00086 243 MFIEADPMMSPVHIVPEWYFLFAYAILRAIPNKVLGVIALLMSIVVFYFFIFVNNY---TSCLNKLNKFLVFSFIVVNVI 319

                         90       100       110
                 ....*....|....*....|....*....|..
gi 7715713    81 LTWVGSQPVEHPFIIIGQLASISYFTILLILF 112
Cdd:MTH00086 320 LSWLGQCLVEYPFLFLSQIFSFIYFFLILLML 351
CYTB MTH00046
cytochrome b; Validated
 2-110 4.76e-19

cytochrome b; Validated


Pssm-ID: 177121 [Multi-domain]  Cd Length: 355  Bit Score: 80.80  E-value: 4.76e-19
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713     2 FTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGvMALAASVLVLFLIPFLHKSKqrtmTFRPLSQLMFWALVSNLLIL 81
Cdd:MTH00046 248 YLEADPLVTPVSIKPEWYFLAFYAMLRSINSKIGG-LVLVLSFLFFLWVPTFNGSS----VYSVWRQVNFWLIVSLFFSL 322

                         90       100
                 ....*....|....*....|....*....
gi 7715713    82 TWVGSQPVEHPFIIIGQLASISYFTILLI 110
Cdd:MTH00046 323 SYLGGCHPEYPYLLISQLFSVLMVLLLFI 351
petD CHL00058
cytochrome b6/f complex subunit IV
 4-71 5.77e-12

cytochrome b6/f complex subunit IV


Pssm-ID: 176998  Cd Length: 160  Bit Score: 58.86  E-value: 5.77e-12
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 7715713     4 PANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHK-SKQRTMTFRPLSQLMF 71
Cdd:CHL00058  65 PADPFATPLEILPEWYFFPVFQILRTVPNKLLGVLLMASVPAGLLTVPFLENvNKFQNPFRRPVATTVF 133
PetD COG5679
Cytochrome b6f complex subunit IV, PetD, 17 kd cytochrome b [Energy production and conversion]; ...
 4-85 1.47e-11

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


Pssm-ID: 444393 [Multi-domain]  Cd Length: 161  Bit Score: 57.88  E-value: 1.47e-11
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 7715713    4 PANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTF-RPLSQLMFwaLVSNLLILt 82
Cdd:COG5679  66 PADPFATPLEILPEWYLYPVFQILRVVPNKLLGIVMMAAIPLGLMLVPFIENVNKFQNPFrRPVATAVF--LFGTLVTL- 142


                ...
gi 7715713   83 WVG 85
Cdd:COG5679 143 WLG 145
cytb6/f_IV TIGR01156
cytochrome b6/f complex subunit IV; This model describes the subunit IV of the cytochrome b6/f ...
 4-71 1.77e-10

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: 55.19  E-value: 1.77e-10
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 7715713      4 PANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVMALAASVLVLFLIPFLHKSKQRTMTF-RPLSQLMF 71
Cdd:TIGR01156  65 PANPFATPLEILPEWYFYPVFQILRTVPNKLLGVLLMAAVPAGLLTVPFIENVNKFQNPFrRPVATTVF 133
 
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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