Annotations: 8YY1

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth M]	SCOP2B Superfamily	V-type ATP synthase subunit C	8040383	3000323	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth M]	PF01992	ATP synthase (C/AC39) subunit (vATP-synt_AC39)	ATP synthase (C/AC39) subunit	-	Family
B [auth N]	PF18670	V-type ATPase subunit I, N-terminal domain (V_ATPase_I_N)	V-type ATPase subunit I, N-terminal domain	Vacuolar H+-ATPase (V-ATPase) is a ubiquitous multi-subunit proton pump that acidifies a wide variety of intracellular compartments, which in turn affects many biological processes, including membrane trafficking, protein degradation and coupled tran ...	Vacuolar H+-ATPase (V-ATPase) is a ubiquitous multi-subunit proton pump that acidifies a wide variety of intracellular compartments, which in turn affects many biological processes, including membrane trafficking, protein degradation and coupled transport of small molecules and pH homeostasis. Subunit 'a' of V0 (the functional domain responsible for proton transport) sector is highly conserved across eukaryotic species and exists in multiple isoforms. It is the largest subunit of V-ATPases and partitioned almost equally into an N-terminal cytosolic domain and a C-terminal integral membrane. Structure analysis of the N-terminal cytosolic domain from the Meiothermus ruber subunit 'I' homolog of subunit a shows that it is composed of a curved long central alpha-helix bundle capped on both ends by two lobes with similar alpha/beta architecture [1].	Domain
B [auth N]	PF18274	Vacuolar ATPase Subunit I N-terminal proximal lobe (V_ATPase_prox)	Vacuolar ATPase Subunit I N-terminal proximal lobe	This domain is found in the cytoplasmic N-terminal domain of vacuolar ATP synthase subunit I present in Meiothermus ruber. Subunit I is a homolog of subunit A which associates with the membrane-bound complex of eukaryotic vacuolar H+-ATPase (V-ATPase ...	This domain is found in the cytoplasmic N-terminal domain of vacuolar ATP synthase subunit I present in Meiothermus ruber. Subunit I is a homolog of subunit A which associates with the membrane-bound complex of eukaryotic vacuolar H+-ATPase (V-ATPase) acidification machinery. The domain forms the proximal lobe that caps one end of the alpha helix bundle, with the distal lobe capping the other end. Although the two lobes exhibit a similar motif, the molecular nature of the coupling with the identical stalks is thought to be dissimilar [1].	Domain
B [auth N]	PF01496	V-type ATPase 116kDa subunit family (V_ATPase_I)	V-type ATPase 116kDa subunit family	-	Family
C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], H [auth T], I [auth U], J [auth V], K [auth W], L [auth X], M [auth Y], N [auth Z]	PF00137	ATP synthase subunit C (ATP-synt_C)	ATP synthase subunit C	This domain is found in the subunit c of ATP synthases and similar sequences from all cellular organisms. It forms two alpha-helices [1-4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth M]	V-type ATP synthase subunit C	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity proton-transporting ATPase activity, rotational mechanism ATPase-coupled monoatomic cation transmembrane transporter activity ATP-dependent activity active monoatomic ion transmembrane transporter activity ATPase-coupled ion transmembrane transporter activity active transmembrane transporter activity ATPase activity, coupled to transmembrane movement of ions, rotational mechanism inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic ion channel activity proton channel activity proton-transporting ATP synthase activity, rotational mechanism monoatomic cation channel activity passive transmembrane transporter activity channel activity catalytic activity ligase activity	ribose phosphate metabolic process ATP metabolic process ATP biosynthetic process nucleotide biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside triphosphate biosynthetic process proton motive force-driven ATP synthesis nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process ribonucleotide metabolic process purine nucleoside triphosphate biosynthetic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process ribose phosphate metabolic process ATP metabolic process ATP biosynthetic process nucleotide biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside triphosphate biosynthetic process proton motive force-driven ATP synthesis nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process ribonucleotide metabolic process purine nucleoside triphosphate biosynthetic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process purine ribonucleoside triphosphate metabolic process phosphate-containing compound metabolic process small molecule metabolic process phosphorus metabolic process ribose phosphate biosynthetic process ribonucleoside triphosphate metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process purine nucleoside triphosphate metabolic process nucleoside triphosphate biosynthetic process proton motive force-driven plasma membrane ATP synthesis primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process ribonucleoside triphosphate biosynthetic process purine-containing compound metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process	ATPase dependent transmembrane transport complex protein-containing complex ATPase complex catalytic complex membrane membrane protein complex proton-transporting V-type ATPase complex transporter complex proton-transporting two-sector ATPase complex, proton-transporting domain cation-transporting ATPase complex cellular anatomical structure proton-transporting two-sector ATPase complex transmembrane transporter complex proton-transporting V-type ATPase, V0 domain
B [auth N]	V-type ATP synthase subunit I	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity proton-transporting ATPase activity, rotational mechanism ATPase-coupled monoatomic cation transmembrane transporter activity ATP-dependent activity active monoatomic ion transmembrane transporter activity ATPase-coupled ion transmembrane transporter activity active transmembrane transporter activity ATPase activity, coupled to transmembrane movement of ions, rotational mechanism inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity proton-transporting ATPase activity, rotational mechanism ATPase-coupled monoatomic cation transmembrane transporter activity ATP-dependent activity active monoatomic ion transmembrane transporter activity ATPase-coupled ion transmembrane transporter activity active transmembrane transporter activity ATPase activity, coupled to transmembrane movement of ions, rotational mechanism inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity ATPase binding protein binding binding enzyme binding	homeostatic process biological regulation intracellular pH reduction regulation of intracellular pH vacuolar acidification cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis regulation of pH monoatomic ion homeostasis intracellular chemical homeostasis regulation of biological quality monoatomic cation homeostasis regulation of cellular pH homeostatic process biological regulation intracellular pH reduction regulation of intracellular pH vacuolar acidification cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis regulation of pH monoatomic ion homeostasis intracellular chemical homeostasis regulation of biological quality monoatomic cation homeostasis regulation of cellular pH intracellular monoatomic ion homeostasis	ATPase dependent transmembrane transport complex protein-containing complex ATPase complex catalytic complex membrane membrane protein complex proton-transporting V-type ATPase complex transporter complex proton-transporting two-sector ATPase complex, proton-transporting domain cation-transporting ATPase complex cellular anatomical structure proton-transporting two-sector ATPase complex transmembrane transporter complex proton-transporting V-type ATPase, V0 domain ATPase dependent transmembrane transport complex protein-containing complex ATPase complex catalytic complex membrane membrane protein complex proton-transporting V-type ATPase complex transporter complex proton-transporting two-sector ATPase complex, proton-transporting domain cation-transporting ATPase complex cellular anatomical structure proton-transporting two-sector ATPase complex transmembrane transporter complex proton-transporting V-type ATPase, V0 domain membrane-bounded organelle intracellular anatomical structure intracellular organelle bounding membrane of organelle vacuolar membrane vacuole intracellular membrane-bounded organelle vacuolar proton-transporting V-type ATPase complex organelle cytoplasm organelle membrane
C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], H [auth T], I [auth U], J [auth V], K [auth W], L [auth X], M [auth Y], N [auth Z]	V-type ATP synthase, subunit K	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity proton-transporting ATPase activity, rotational mechanism ATPase-coupled monoatomic cation transmembrane transporter activity ATP-dependent activity active monoatomic ion transmembrane transporter activity ATPase-coupled ion transmembrane transporter activity active transmembrane transporter activity ATPase activity, coupled to transmembrane movement of ions, rotational mechanism inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity proton-transporting ATPase activity, rotational mechanism ATPase-coupled monoatomic cation transmembrane transporter activity ATP-dependent activity active monoatomic ion transmembrane transporter activity ATPase-coupled ion transmembrane transporter activity active transmembrane transporter activity ATPase activity, coupled to transmembrane movement of ions, rotational mechanism inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	-	ATPase dependent transmembrane transport complex protein-containing complex ATPase complex catalytic complex membrane membrane protein complex proton-transporting V-type ATPase complex transporter complex proton-transporting two-sector ATPase complex, proton-transporting domain cation-transporting ATPase complex cellular anatomical structure proton-transporting two-sector ATPase complex transmembrane transporter complex proton-transporting V-type ATPase, V0 domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth M]	IPR036079	V-type ATP synthase subunit c/d subunit superfamily	Homologous Superfamily
A [auth M]	IPR035067	V-type ATPase subunit C/d	Homologous Superfamily
A [auth M]	IPR002843	ATPase, V0 complex, c/d subunit	Family
A [auth M]	IPR050873	V-ATPase V0D/AC39 subunit	Family
A [auth M]	IPR044911	V-type ATP synthase c/d subunit, domain 3 superfamily	Homologous Superfamily
A [auth M]	IPR014272	ATPase, V0 complex, c subunit	Family
B [auth N]	IPR040574	V-type ATP synthase subunit I, N-terminal	Domain
B [auth N]	IPR002490	V-type ATPase, V0 complex, 116kDa subunit family	Family
B [auth N]	IPR041276	Vacuolar ATPase subunit I, N-terminal proximal lobe	Domain
C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], H [auth T], I [auth U], J [auth V], K [auth W], L [auth X], M [auth Y], N [auth Z]	IPR035921	F/V-ATP synthase subunit C superfamily	Homologous Superfamily
C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], H [auth T], I [auth U], J [auth V], K [auth W], L [auth X], M [auth Y], N [auth Z]	IPR000245	V-ATPase proteolipid subunit	Family
C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], H [auth T], I [auth U], J [auth V], K [auth W], L [auth X], M [auth Y], N [auth Z]	IPR002379	V-ATPase proteolipid subunit C-like domain	Domain

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
B [auth N], C [auth O], D [auth P], E [auth Q], F [auth R] B [auth N], C [auth O], D [auth P], E [auth Q], F [auth R], G [auth S], H [auth T], I [auth U], J [auth V], K [auth W], L [auth X], M [auth Y], N [auth Z]	PDBTM	Annotated as membrane protein by PDBTM

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.