Identification
BMDB Protein ID BMDBP00007
Secondary Accession Numbers None
Name Cytochrome c oxidase subunit 5A, mitochondrial
Synonyms Not Available
Gene Name COX5A
Protein Type Enzyme
Biological Properties
General Function Involved in cytochrome-c oxidase activity
Specific Function Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1 to the active site in subunit 1, a binuclear center (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix.
Pathways Not Available
Reactions Not Available
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location 21
Locus Not Available
SNPs COX5A
Gene Sequence
>459 bp
ATGCTAGGCGCCGCTGTCCGCCGCTGCTCTGTAGCTGCAGCCGCAGTCGCCCGGGCCAGC
CCTCGAGGCCTCCTGCACCCCACTCCGGCCCCCGGCCAAGCCGCCGCTGTCCAGTCACTT
CGCTGCTACTCCCATGGGTCACATGAGACAGACGAGGAGTTTGATGCTCGCTGGGTGACA
TACTTCAATAAGCCAGATATTGATGCTTGGGAGTTGCGTAAAGGGATGAACACACTTGTT
GGCTATGACCTGGTTCCAGAGCCCAAAATCATTGATGCTGCTTTGCGGGCATGCAGACGT
TTAAATGATTTTGCTAGTGCAGTTCGCATTCTAGAAGTTGTTAAGGACAAAGCAGGACCT
CATAAGGAAATCTACCCCTATGTCATCCAGGAACTTAGACCAACTTTGAATGAACTGGGA
ATCTCCACTCCAGAGGAACTGGGCCTTGACAAAGTGTAA
Protein Properties
Number of Residues 152
Molecular Weight 16735.0
Theoretical pI 6.94
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions Not Available
Protein Sequence
>Cytochrome c oxidase subunit 5A, mitochondrial
MLGAAVRRCSVAAAAVARASPRGLLHPTPAPGQAAAVQSLRCYSHGSHETDEEFDARWVT
YFNKPDIDAWELRKGMNTLVGYDLVPEPKIIDAALRACRRLNDFASAVRILEVVKDKAGP
HKEIYPYVIQELRPTLNELGISTPEELGLDKV
GenBank ID Protein AAS20602.1
UniProtKB/Swiss-Prot ID P00426
UniProtKB/Swiss-Prot Entry Name COX5A_BOVIN
PDB IDs
GenBank Gene ID AY528254
GeneCard ID COX5A
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available