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Q37600 (COX3_PYLLI) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 69. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Cytochrome c oxidase subunit 3

EC=1.9.3.1
Alternative name(s):
Cytochrome c oxidase polypeptide III
Gene names
Name:COX3
Encoded onMitochondrion
OrganismPylaiella littoralis
Taxonomic identifier2885 [NCBI]
Taxonomic lineageEukaryotaStramenopilesPX cladePhaeophyceaeEctocarpalesAcinetosporaceaePylaiella

Protein attributes

Sequence length272 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

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

Catalytic activity

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

Subcellular location

Mitochondrion inner membrane; Multi-pass membrane protein By similarity.

Sequence similarities

Belongs to the cytochrome c oxidase subunit 3 family.

Ontologies

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 272272Cytochrome c oxidase subunit 3
PRO_0000183840

Regions

Transmembrane20 – 4021Helical; Potential
Transmembrane45 – 6521Helical; Potential
Transmembrane89 – 10921Helical; Potential
Transmembrane128 – 14821Helical; Potential
Transmembrane166 – 18621Helical; Potential
Transmembrane204 – 22421Helical; Potential
Transmembrane248 – 26821Helical; Potential

Sequences

Sequence LengthMass (Da)Tools
Q37600 [UniParc].

Last modified November 1, 1996. Version 1.
Checksum: B9EFF7803A08E8DD

FASTA27230,628
        10         20         30         40         50         60 
MKSTAKMIQR HPFHLVDPSP WPLVAALGGL SLTFGGVLFM HNYEGGGELL CLGFFTILYV 

        70         80         90        100        110        120 
MFTWWRDVIR EALFEGQHTL AVQQGLRMGM ILFIVSEIMF FFAFFWAFFT SSISPVFNIG 

       130        140        150        160        170        180 
GVWPPTDVVA ISPWGLPFLN TILLLSSGAS VTWAHHAIVG GLKKEAMQGL SVTLAFAIAF 

       190        200        210        220        230        240 
TAMQGFEYSG APFGMSDGVY GSVFYMATGF HGFHVIIGTI FLFICTIRLY LSHFSCQHHF 

       250        260        270 
GFEAAAWYWH FVDVVWLFLF LTIYWWGFNI TV 

« Hide

References

[1]"Characterisation of the cox3, nad7 and atp6 genes from the mitochondrial genome of the brown alga Pylaiella littoralis."
Fontaine J.-M., Rousvoal S., Delaroque N., Loiseaux-De Goer S.
Plant Physiol. Biochem. 33:605-609(1995)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
Z37967 Genomic DNA. Translation: CAA86022.1.
PIRS57460.
RefSeqNP_150402.1. NC_003055.1.

3D structure databases

ProteinModelPortalQ37600.
SMRQ37600. Positions 7-267.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID803717.

Family and domain databases

Gene3D1.20.120.80. 1 hit.
InterProIPR024791. Cyt_c/ubiquinol_Oxase_su3.
IPR000298. Cyt_c_oxidase_su3.
IPR013833. Cyt_c_oxidase_su3_a-hlx.
[Graphical view]
PANTHERPTHR11403. PTHR11403. 1 hit.
PfamPF00510. COX3. 1 hit.
[Graphical view]
SUPFAMSSF81452. SSF81452. 1 hit.
PROSITEPS50253. COX3. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameCOX3_PYLLI
AccessionPrimary (citable) accession number: Q37600
Entry history
Integrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: November 1, 1996
Last modified: April 16, 2014
This is version 69 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)

Relevant documents

SIMILARITY comments

Index of protein domains and families