SUPERFAMILY 1.75 HMM library and genome assignments server

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14 kDa protein 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:   14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [ 81525]
Superfamily:   14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [ 81524]
Families:   14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [ 81523]


Superfamily statistics
Genomes (475) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 633 1,754 7
Proteins 629 1,749 7


Functional annotation
General category Metabolism
Detailed category Energy

Document:
Function annotation of SCOP domain superfamilies

InterPro annotation
Cross references IPR003197 SSF81524 Protein matches
Abstract

The cytochrome bd type terminal oxidases catalyse quinol dependent, Na+ independent oxygen uptake [PubMed8626304]. Members of this family are integral membrane proteins and contain a protoheame IX centre B558.

Cytochrome bd may play an important role in microaerobic nitrogen fixation in the enteric bacterium Klebsiella pneumoniae, where it is expressed under all conditions that permit diazotrophy [PubMed9274021].

The 14 kDa (or VI) subunit of the complex is not directly involved in electron transfer, but has a role in assembly of the complex [PubMed7770525].


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 ]

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 4 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 14 kDa protein 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 4 hidden Markov models representing the 14 kDa protein 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 · Internal database links ]