UniProt functional annotation for P38077

UniProt code: P38077.

Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast).
Taxonomy: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces.
 
Function: Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core, and F(0) - containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. Part of the complex F(1) domain and the central stalk which is part of the complex rotary element. The gamma subunit protrudes into the catalytic domain formed of alpha(3)beta(3). Rotation of the central stalk against the surrounding alpha(3)beta(3) subunits leads to hydrolysis of ATP in three separate catalytic sites on the beta subunits.
 
Subunit: F-type ATPases have 2 components, CF(1) - the catalytic core - and CF(0) - the membrane proton channel. CF(1) has five subunits: alpha(3), beta(3), gamma(1), delta(1), epsilon(1). CF(0) has three main subunits: a, b and c.
Subcellular location: Mitochondrion. Mitochondrion inner membrane; Peripheral membrane protein.
Miscellaneous: Present with 28100 molecules/cell in log phase SD medium. {ECO:0000269|PubMed:14562106}.
Miscellaneous: PubMed:12898710 reports two tandemly repeated copies of ATP3 (ATP3a and ATP3b) on the right arm of chromosome II in several laboratory strains, including S288c. This has not been confirmed by the yeast genome sequencing project.
Similarity: Belongs to the ATPase gamma chain family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.