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Protein

Cytochrome c oxidase subunit 3

Gene

mt-co3

Organism
Oncorhynchus nerka (Sockeye salmon) (Salmo nerka)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Subunits I, II and III form the functional core of the enzyme complex.

Catalytic activityi

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

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 3 (EC:1.9.3.1)
Alternative name(s):
Cytochrome c oxidase polypeptide III
Gene namesi
Name:mt-co3
Synonyms:coiii, coxiii, mtco3
Encoded oniMitochondrion
OrganismiOncorhynchus nerka (Sockeye salmon) (Salmo nerka)
Taxonomic identifieri8023 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiProtacanthopterygiiSalmoniformesSalmonidaeSalmoninaeOncorhynchus

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei7 – 27HelicalSequence analysisAdd BLAST21
Transmembranei32 – 52HelicalSequence analysisAdd BLAST21
Transmembranei81 – 101HelicalSequence analysisAdd BLAST21
Transmembranei127 – 147HelicalSequence analysisAdd BLAST21
Transmembranei159 – 179HelicalSequence analysisAdd BLAST21
Transmembranei197 – 217HelicalSequence analysisAdd BLAST21
Transmembranei239 – 259HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001838191 – 261Cytochrome c oxidase subunit 3Add BLAST261

Structurei

3D structure databases

ProteinModelPortaliP69218.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG016686.

Family and domain databases

CDDicd01665. Cyt_c_Oxidase_III. 1 hit.
Gene3Di1.20.120.80. 1 hit.
InterProiIPR024791. Cyt_c/ubiquinol_Oxase_su3.
IPR033945. Cyt_c_oxase_su3_dom.
IPR000298. Cyt_c_oxidase-like_su3.
IPR013833. Cyt_c_oxidase_su3_a-hlx.
[Graphical view]
PANTHERiPTHR11403. PTHR11403. 1 hit.
PfamiPF00510. COX3. 1 hit.
[Graphical view]
SUPFAMiSSF81452. SSF81452. 1 hit.
PROSITEiPS50253. COX3. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P69218-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAHQAHAYHM VDPSPWPLTG AIAALLLTSG TAVWFHFHSL TLLTLGNVLL
60 70 80 90 100
LLTMYQWWRD IIREGTFQGH HTPPVQKGLR YGMILFITSE VFFFLGFFWA
110 120 130 140 150
FYHASLAPTP ELGGCWPPTG ITTLDPFEVP LLNTAVLLAS GVTVTWAHHS
160 170 180 190 200
IMEGERKQTI QALTLTILLG FYFTFLQGME YYEAPFTIAD GVYGSTFFVA
210 220 230 240 250
TGFHGLHVII GSTFLAVCLL RQVQYHFTSE HHFGFEAAAW YWHFVDVVWL
260
FLYVSIYWWG S
Length:261
Mass (Da):29,691
Last modified:February 15, 2005 - v1
Checksum:i362F361768AD0635
GO

Sequence databases

PIRiA30396.

Cross-referencesi

Sequence databases

PIRiA30396.

3D structure databases

ProteinModelPortaliP69218.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

HOVERGENiHBG016686.

Family and domain databases

CDDicd01665. Cyt_c_Oxidase_III. 1 hit.
Gene3Di1.20.120.80. 1 hit.
InterProiIPR024791. Cyt_c/ubiquinol_Oxase_su3.
IPR033945. Cyt_c_oxase_su3_dom.
IPR000298. Cyt_c_oxidase-like_su3.
IPR013833. Cyt_c_oxidase_su3_a-hlx.
[Graphical view]
PANTHERiPTHR11403. PTHR11403. 1 hit.
PfamiPF00510. COX3. 1 hit.
[Graphical view]
SUPFAMiSSF81452. SSF81452. 1 hit.
PROSITEiPS50253. COX3. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCOX3_ONCNE
AccessioniPrimary (citable) accession number: P69218
Secondary accession number(s): P20683
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 15, 2005
Last sequence update: February 15, 2005
Last modified: November 30, 2016
This is version 62 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

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.