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Protein

Cytochrome c oxidase subunit 4

Gene

ctaH

Organism
Paracoccus denitrificans
Status
Reviewed-Annotation score: -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

Keywordsi

Molecular functionOxidoreductase

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)DescriptionActionsGraphical viewLength
Topological domaini2 – 17CytoplasmicAdd BLAST16
Transmembranei18 – 49HelicalAdd BLAST32
Topological domaini50Periplasmic1

GO - Cellular componenti

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00001839042 – 50Cytochrome c oxidase subunit 4Add BLAST49

Proteomic databases

PRIDEiP77921

Structurei

Secondary structure

150
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi18 – 47Combined sources30

3D structure databases

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

Miscellaneous databases

EvolutionaryTraceiP77921

Family & Domainsi

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.20.5.160, 1 hit
InterProiView protein in InterPro
IPR036596 Cyt-C_aa3_sf
IPR012422 Cyt_c_oxidase_su4_bac-aa3
PfamiView protein in Pfam
PF07835 COX4_pro_2, 1 hit
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
RefSeqiWP_041529744.1, NZ_PPGA01000010.1

Similar proteinsi

Entry informationi

Entry nameiCOX4_PARDE
AccessioniPrimary (citable) accession number: P77921
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: January 23, 2007
Last modified: May 23, 2018
This is version 91 of the entry and version 3 of the sequence. See 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

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