ID   ATPA_ARATH              Reviewed;         507 AA.
AC   P56757;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2000, sequence version 1.
DT   02-SEP-2026, entry version 178.
DE   RecName: Full=ATP synthase subunit alpha, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01346};
DE            EC=7.1.2.2 {ECO:0000255|HAMAP-Rule:MF_01346};
DE   AltName: Full=ATP synthase F1 sector subunit alpha {ECO:0000255|HAMAP-Rule:MF_01346};
DE   AltName: Full=F-ATPase subunit alpha {ECO:0000255|HAMAP-Rule:MF_01346};
GN   Name=atpA {ECO:0000255|HAMAP-Rule:MF_01346};
GN   OrderedLocusNames=AtCg00120;
OS   Arabidopsis thaliana (Mouse-ear cress).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis.
OX   NCBI_TaxID=3702;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=10574454; DOI=10.1093/dnares/6.5.283;
RA   Sato S., Nakamura Y., Kaneko T., Asamizu E., Tabata S.;
RT   "Complete structure of the chloroplast genome of Arabidopsis thaliana.";
RL   DNA Res. 6:283-290(1999).
RN   [2]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-257, AND IDENTIFICATION BY
RP   MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=22092075; DOI=10.1021/pr200917t;
RA   Aryal U.K., Krochko J.E., Ross A.R.;
RT   "Identification of phosphoproteins in Arabidopsis thaliana leaves using
RT   polyethylene glycol fractionation, immobilized metal-ion affinity
RT   chromatography, two-dimensional gel electrophoresis and mass
RT   spectrometry.";
RL   J. Proteome Res. 11:425-437(2012).
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       {ECO:0000255|HAMAP-Rule:MF_01346}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + 4 H(+)(in) = ADP + phosphate + 5 H(+)(out);
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|HAMAP-Rule:MF_01346};
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. {ECO:0000255|HAMAP-Rule:MF_01346}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01346}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01346}.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000255|HAMAP-Rule:MF_01346}.
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DR   EMBL; AP000423; BAA84370.1; -; Genomic_DNA.
DR   RefSeq; NP_051044.1; NC_000932.1.
DR   AlphaFoldDB; P56757; -.
DR   SMR; P56757; -.
DR   BioGRID; 29984; 8.
DR   FunCoup; P56757; 294.
DR   IntAct; P56757; 1.
DR   MINT; P56757; -.
DR   STRING; 3702.P56757; -.
DR   iPTMnet; P56757; -.
DR   PaxDb; 3702-P56757; -.
DR   ProteomicsDB; 246662; -.
DR   GeneID; 844790; -.
DR   KEGG; ath:ArthCp007; -.
DR   Araport; ATCG00120; -.
DR   TAIR; ATCG00120; ATPA.
DR   eggNOG; KOG1353; Eukaryota.
DR   HOGENOM; CLU_010091_2_1_1; -.
DR   InParanoid; P56757; -.
DR   OMA; WRISHIR; -.
DR   BioCyc; ARA:ATCG00120-MONOMER; -.
DR   PRO; PR:P56757; -.
DR   Proteomes; UP000006548; Chloroplast.
DR   ExpressionAtlas; P56757; baseline and differential.
DR   GO; GO:0009507; C:chloroplast; HDA:TAIR.
DR   GO; GO:0009534; C:chloroplast thylakoid; HDA:TAIR.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; HDA:TAIR.
DR   GO; GO:0005829; C:cytosol; HDA:TAIR.
DR   GO; GO:0005739; C:mitochondrion; HDA:TAIR.
DR   GO; GO:0009536; C:plastid; HDA:TAIR.
DR   GO; GO:0045259; C:proton-transporting ATP synthase complex; IEA:InterPro.
DR   GO; GO:0010319; C:stromule; IDA:TAIR.
DR   GO; GO:0009579; C:thylakoid; HDA:TAIR.
DR   GO; GO:0031977; C:thylakoid lumen; HDA:TAIR.
DR   GO; GO:0043531; F:ADP binding; IBA:GO_Central.
DR   GO; GO:0005524; F:ATP binding; IBA:GO_Central.
DR   GO; GO:0003729; F:mRNA binding; IDA:TAIR.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; HDA:TAIR.
DR   GO; GO:0015986; P:proton motive force-driven ATP synthesis; IBA:GO_Central.
DR   GO; GO:0009409; P:response to cold; IEP:TAIR.
DR   CDD; cd18113; ATP-synt_F1_alpha_C; 1.
DR   CDD; cd18116; ATP-synt_F1_alpha_N; 1.
DR   CDD; cd01132; F1-ATPase_alpha_CD; 1.
DR   FunFam; 1.20.150.20:FF:000001; ATP synthase subunit alpha; 1.
DR   FunFam; 2.40.30.20:FF:000001; ATP synthase subunit alpha; 1.
DR   FunFam; 3.40.50.300:FF:000002; ATP synthase subunit alpha; 1.
DR   Gene3D; 2.40.30.20; -; 1.
DR   Gene3D; 1.20.150.20; ATP synthase alpha/beta chain, C-terminal domain; 1.
DR   Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR   HAMAP; MF_01346; ATP_synth_alpha_bact; 1.
DR   InterPro; IPR023366; ATP_synth_asu-like_sf.
DR   InterPro; IPR000793; ATP_synth_asu_C.
DR   InterPro; IPR038376; ATP_synth_asu_C_sf.
DR   InterPro; IPR033732; ATP_synth_F1_a_nt-bd_dom.
DR   InterPro; IPR005294; ATP_synth_F1_asu.
DR   InterPro; IPR020003; ATPase_a/bsu_AS.
DR   InterPro; IPR004100; ATPase_F1/V1/A1_a/bsu_N.
DR   InterPro; IPR036121; ATPase_F1/V1/A1_a/bsu_N_sf.
DR   InterPro; IPR000194; ATPase_F1/V1/A1_a/bsu_nucl-bd.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   NCBIfam; TIGR00962; atpA; 1.
DR   NCBIfam; NF009884; PRK13343.1; 1.
DR   PANTHER; PTHR48082; ATP SYNTHASE SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR48082:SF2; ATP SYNTHASE SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR   Pfam; PF00006; ATP-synt_ab; 1.
DR   Pfam; PF00306; ATP-synt_ab_C; 1.
DR   Pfam; PF02874; ATP-synt_ab_N; 1.
DR   PIRSF; PIRSF039088; F_ATPase_subunit_alpha; 1.
DR   SUPFAM; SSF47917; C-terminal domain of alpha and beta subunits of F1 ATP synthase; 1.
DR   SUPFAM; SSF50615; N-terminal domain of alpha and beta subunits of F1 ATP synthase; 1.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR   PROSITE; PS00152; ATPASE_ALPHA_BETA; 1.
PE   1: Evidence at protein level;
KW   ATP synthesis; ATP-binding; CF(1); Chloroplast; Hydrogen ion transport;
KW   Ion transport; Membrane; Nucleotide-binding; Phosphoprotein; Plastid;
KW   Reference proteome; Thylakoid; Translocase; Transport.
FT   CHAIN           1..507
FT                   /note="ATP synthase subunit alpha, chloroplastic"
FT                   /id="PRO_0000144370"
FT   BINDING         170..177
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01346"
FT   SITE            363
FT                   /note="Required for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01346"
FT   MOD_RES         257
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0007744|PubMed:22092075"
SQ   SEQUENCE   507 AA;  55328 MW;  5D48A3CAD6D645C9 CRC64;
     MVTIRADEIS NIIRERIEQY NREVTIVNTG TVLQVGDGIA RIYGLDEVMA GELVEFEEGT
     IGIALNLESN NVGVVLMGDG LMIQEGSSVK ATGKIAQIPV SEAYLGRVIN ALANPIDGRG
     KISASESRLI ESPAPGIISR RSVYEPLQTG LIAIDSMIPI GRGQRELIIG DRQTGKTAVA
     TDTILNQQGQ NVICVYVAIG QKASSVAQVV TSLQERGAME YTIVVAETAD SPATLQYLAP
     YTGAALAEYF MYREQHTLII YDDLSKQAQA YRQMSLLLRR PPGREAYPGD VFYLHSRLLE
     RAAKLSSQLG EGSMTALPIV ETQSGDVSAY IPTNVISITD GQIFLSADLF NAGIRPAINV
     GISVSRVGSA AQIKAMKQVA GKLKLELAQF AELEAFSQFS SDLDKATQNQ LARGQRLREL
     LKQSQSAPLT VEEQIMTIYT GTNGYLDGLE IGQVRKFLVQ LRTYLKTNKP QFQEIIASTK
     TLTAEAESFL KEGIQEQLER FLLQEKV
//