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Protein

Cytochrome c oxidase subunit 4

Gene

ctaH

Organism
Paracoccus denitrificans
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Not required for enzymatic activity or proton pumping of the cytochrome c oxidase complex.1 Publication

Catalytic activityi

4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.

GO - Molecular functioni

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 4 (EC:1.9.3.1)
Alternative name(s):
Cytochrome aa3 subunit 4
Cytochrome c oxidase polypeptide IV
Gene namesi
Name:ctaH
OrganismiParacoccus denitrificans
Taxonomic identifieri266 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeParacoccus

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini2 – 1716CytoplasmicAdd
BLAST
Transmembranei18 – 4932HelicalAdd
BLAST
Topological domaini50 – 501Periplasmic

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methionineiRemoved1 Publication
Chaini2 – 5049Cytochrome c oxidase subunit 4PRO_0000183904Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi318586.Pden_0432.

Structurei

Secondary structure

1
50
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi18 – 4730Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1QLEX-ray3.00D8-50[»]
ProteinModelPortaliP77921.
SMRiP77921. Positions 8-50.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP77921.

Family & Domainsi

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.20.5.160. 1 hit.
InterProiIPR012422. Cyt_c_oxidase_su4_bac-aa3.
[Graphical view]
PfamiPF07835. COX4_pro_2. 1 hit.
[Graphical view]
SUPFAMiSSF81469. SSF81469. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P77921-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MASHHEITDH KHGEMDIRHQ QATFAGFIKG ATWVSILSIA VLVFLALANS
Length:50
Mass (Da):5,501
Last modified:January 23, 2007 - v3
Checksum:i1D6B6674CAF5EC88
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y08372 Genomic DNA. Translation: CAA69659.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y08372 Genomic DNA. Translation: CAA69659.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1QLEX-ray3.00D8-50[»]
ProteinModelPortaliP77921.
SMRiP77921. Positions 8-50.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi318586.Pden_0432.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP77921.

Family and domain databases

Gene3Di1.20.5.160. 1 hit.
InterProiIPR012422. Cyt_c_oxidase_su4_bac-aa3.
[Graphical view]
PfamiPF07835. COX4_pro_2. 1 hit.
[Graphical view]
SUPFAMiSSF81469. SSF81469. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiCOX4_PARDE
AccessioniPrimary (citable) accession number: P77921
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: January 23, 2007
Last modified: December 9, 2015
This is version 85 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.