ID   ATPA_BRYMA              Reviewed;          29 AA.
AC   P26965;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   25-MAY-2022, entry version 85.
DE   RecName: Full=ATP synthase subunit alpha, chloroplastic;
DE            EC=7.1.2.2;
DE   AltName: Full=ATP synthase F1 sector subunit alpha;
DE   AltName: Full=F-ATPase subunit alpha;
DE   Flags: Fragment;
GN   Name=atpA;
OS   Bryopsis maxima (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; Ulvophyceae; TCBD clade;
OC   Bryopsidales; Bryopsidineae; Bryopsidaceae; Bryopsis.
OX   NCBI_TaxID=3129;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1884001; DOI=10.1007/bf00040645;
RA   Kono M., Satoh H., Okabe Y., Abe Y., Nakayama K., Okada M.;
RT   "Nucleotide sequence of the large subunit of ribulose-1,5-bisphosphate
RT   carboxylase/oxygenase from the green alga Bryopsis maxima.";
RL   Plant Mol. Biol. 17:505-508(1991).
CC   -!- FUNCTION: Produces ATP from ADP in the presence of a proton gradient
CC       across the membrane. The alpha chain is a regulatory subunit.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + 4 H(+)(in) + H2O = ADP + 5 H(+)(out) + phosphate;
CC         Xref=Rhea:RHEA:57720, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=7.1.2.2;
CC         Evidence={ECO:0000255|PROSITE-ProRule:PRU10106};
CC   -!- SUBUNIT: F-type ATPases have 2 components, CF(1) - the catalytic core
CC       - and CF(0) - the membrane proton channel. CF(1) has five subunits:
CC       alpha(3), beta(3), gamma(1), delta(1), epsilon(1). CF(0) has four main
CC       subunits: a, b, b' and c (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000305}.
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DR   EMBL; X55877; CAA39362.1; -; Genomic_DNA.
DR   PIR; S17432; S17432.
DR   AlphaFoldDB; P26965; -.
DR   SMR; P26965; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045261; C:proton-transporting ATP synthase complex, catalytic core F(1); IEA:UniProtKB-KW.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-EC.
DR   GO; GO:0046961; F:proton-transporting ATPase activity, rotational mechanism; IEA:UniProtKB-EC.
PE   3: Inferred from homology;
KW   ATP synthesis; ATP-binding; CF(1); Chloroplast; Hydrogen ion transport;
KW   Ion transport; Membrane; Nucleotide-binding; Plastid; Thylakoid;
KW   Translocase; Transport.
FT   CHAIN           <1..29
FT                   /note="ATP synthase subunit alpha, chloroplastic"
FT                   /id="PRO_0000144371"
FT   NON_TER         1
SQ   SEQUENCE   29 AA;  3308 MW;  A25A0BAD077F338B CRC64;
     DIIMSTNTFS EEAEALLKEA LETYLKEFA