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Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Membrane and cell surface proteins and peptides [ 56835] (58)
Fold:   Single transmembrane helix [ 81407] (38)
Superfamily:   Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [ 81508]
Families:   Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [ 81507]


Superfamily statistics
Genomes (422) Uniprot 2014_06 PDB chains (SCOP 1.75)
Domains 507 549 5
Proteins 507 549 5


Functional annotation
General category Metabolism
Detailed category Energy

Document:
Function annotation of SCOP domain superfamilies

Gene Ontology (high-quality)

(show details)
GO termFDR (singleton)FDR (all)SDFO levelAnnotation (direct or inherited)
Cellular Component (CC)membrane0.00000023470.000001569Least InformativeDirect
Cellular Component (CC)macromolecular complex0.00010930.0004016Least InformativeDirect
Cellular Component (CC)intracellular membrane-bounded organelle0.0000038530.00004612Least InformativeDirect
Cellular Component (CC)cytoplasmic part0.000013270.00002409Least InformativeDirect
Cellular Component (CC)intracellular organelle part0.000000074360.000001229Least InformativeDirect
Cellular Component (CC)intrinsic component of membrane0.000000016630.0000005022Moderately InformativeDirect
Cellular Component (CC)organelle envelope0.00000000000059030.0000000000003439Moderately InformativeDirect
Cellular Component (CC)mitochondrial part0.00000000000064760.0000000000001771Moderately InformativeDirect
Cellular Component (CC)membrane protein complex0.0000000064240.00000000304Moderately InformativeDirect
Cellular Component (CC)mitochondrial respiratory chain0.00043280.0003251InformativeDirect
Cellular Component (CC)cytochrome complex0.0000000000120.0000000000003081InformativeDirect
Cellular Component (CC)respiratory chain complex0.000000000048030.000000000002058InformativeDirect
Cellular Component (CC)oxidoreductase complex0.000000000065960.00000000001774InformativeDirect
Cellular Component (CC)transporter complex0.0000000000001820.00000000001292InformativeDirect
Cellular Component (CC)inner mitochondrial membrane protein complex0.0011590.0001927InformativeInherited
Cellular Component (CC)mitochondrial respiratory chain complex III00Highly InformativeDirect

Document: GO annotation of SCOP domains

Gene Ontology (high-coverage)

(show details)
GO term FDR (all) SDFO level Annotation (direct or inherited)
Cellular Component (CC) membrane 0.000001569 Least Informative Direct
Cellular Component (CC) macromolecular complex 0.0004016 Least Informative Direct
Cellular Component (CC) intracellular membrane-bounded organelle 0.00004612 Least Informative Direct
Cellular Component (CC) cytoplasmic part 0.00002409 Least Informative Direct
Cellular Component (CC) intracellular organelle part 0.000001229 Least Informative Direct
Cellular Component (CC) intrinsic component of membrane 0.0000005022 Moderately Informative Direct
Cellular Component (CC) organelle envelope 0.0000000000003439 Moderately Informative Direct
Cellular Component (CC) mitochondrial part 0.0000000000001771 Moderately Informative Direct
Cellular Component (CC) membrane protein complex 0.00000000304 Moderately Informative Direct
Cellular Component (CC) mitochondrial respiratory chain 0.0003251 Informative Direct
Cellular Component (CC) cytochrome complex 0.0000000000003081 Informative Direct
Cellular Component (CC) inner mitochondrial membrane protein complex 0.0001927 Informative Direct
Cellular Component (CC) respiratory chain complex 0.000000000002058 Informative Direct
Cellular Component (CC) oxidoreductase complex 0.00000000001774 Informative Direct
Cellular Component (CC) transporter complex 0.00000000001292 Informative Direct
Cellular Component (CC) mitochondrial respiratory chain complex III 0 Highly Informative Direct

Document: GO annotation of SCOP domains

UniProtKB KeyWords (KW)

(show details)
KW termFDR (all)SDKW levelAnnotation (direct or inherited)
Biological processTransport0Least InformativeDirect
Biological processElectron transport0InformativeDirect
Biological processRespiratory chain0Highly InformativeDirect
Cellular componentMembrane0Least InformativeDirect
Cellular componentMitochondrion0Moderately InformativeDirect
Cellular componentMitochondrion inner membrane0InformativeDirect
Post-translational modificationAcetylation0.0000001503Least InformativeDirect

Document: KW annotation of SCOP domains

InterPro annotation
Cross references IPR004205 SSF81508 Protein matches
Abstract

The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multi-enzyme complex [PubMed9651245], which recognises a mitochondrial targeting presequence. The bc1 complex contains 11 subunits: 3 respiratory subunits (cytochrome b, cytochrome c1 and Rieske protein), 2 core proteins and 6 low molecular weight proteins. This family represents the 9.5 kDa subunit of the complex. This subunit together with cytochrome B binds to ubiquinone.


InterPro database


PDBeMotif information about ligands, sequence and structure motifs
Cross references PDB entries
Ligand binding statistics
Nucleic-acid binding statistics
Occurrence of secondary structure elements
Occurrence of small 3D structural motifs

PDBeMotif resource

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Gene Ontology (high-quality) · Gene Ontology (high-coverage) · UniProtKB KeyWords (KW) ]

Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.


Alignments of sequences to 3 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.


Browse and view proteins in genomes which have different domain combinations including a Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) domain.


Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 3 hidden Markov models representing the Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.


Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Gene Ontology (high-quality) · Gene Ontology (high-coverage) · UniProtKB KeyWords (KW) · Internal database links ]