ID   ATPA_OSTTA              Reviewed;         504 AA.
AC   Q0P3K5;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   19-SEP-2006, sequence version 1.
DT   03-AUG-2022, entry version 89.
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}; OrderedLocusNames=OtCpg00470;
OS   Ostreococcus tauri.
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; Mamiellophyceae; Mamiellales;
OC   Bathycoccaceae; Ostreococcus.
OX   NCBI_TaxID=70448;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=OTTH0595;
RX   PubMed=17251180; DOI=10.1093/molbev/msm012;
RA   Robbens S., Derelle E., Ferraz C., Wuyts J., Moreau H., Van de Peer Y.;
RT   "The complete chloroplast and mitochondrial DNA sequence of Ostreococcus
RT   tauri: organelle genomes of the smallest eukaryote are examples of
RT   compaction.";
RL   Mol. Biol. Evol. 24:956-968(2007).
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 + 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|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; CR954199; CAL36372.1; -; Genomic_DNA.
DR   RefSeq; YP_717250.1; NC_008289.1.
DR   AlphaFoldDB; Q0P3K5; -.
DR   SMR; Q0P3K5; -.
DR   STRING; 70448.Q0P3K5; -.
DR   PRIDE; Q0P3K5; -.
DR   GeneID; 4238807; -.
DR   KEGG; ota:OstapCp47; -.
DR   eggNOG; KOG1353; Eukaryota.
DR   InParanoid; Q0P3K5; -.
DR   OrthoDB; 470054at2759; -.
DR   Proteomes; UP000009170; Chloroplast.
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); IBA:GO_Central.
DR   GO; GO:0043531; F:ADP binding; IBA:GO_Central.
DR   GO; GO:0005524; F:ATP binding; IBA:GO_Central.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   GO; GO:0046961; F:proton-transporting ATPase activity, rotational mechanism; IEA:UniProtKB-EC.
DR   GO; GO:0015986; P:proton motive force-driven ATP synthesis; IBA:GO_Central.
DR   CDD; cd18113; ATP-synt_F1_alpha_C; 1.
DR   CDD; cd01132; F1_ATPase_alpha; 1.
DR   Gene3D; 1.20.150.20; -; 1.
DR   Gene3D; 2.40.30.20; -; 1.
DR   Gene3D; 3.40.50.300; -; 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.
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   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; SSF50615; SSF50615; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00962; atpA; 1.
DR   PROSITE; PS00152; ATPASE_ALPHA_BETA; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; ATP-binding; CF(1); Chloroplast; Hydrogen ion transport;
KW   Ion transport; Membrane; Nucleotide-binding; Plastid; Reference proteome;
KW   Thylakoid; Translocase; Transport.
FT   CHAIN           1..504
FT                   /note="ATP synthase subunit alpha, chloroplastic"
FT                   /id="PRO_0000256122"
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"
SQ   SEQUENCE   504 AA;  53964 MW;  3AB27822207203F9 CRC64;
     MVKIRPDEIS SVIRQQIEQY TQEAQVVNVG TVLQVGDGIA RIYGLQKVMS GELLEFQDGT
     IGVALNLETD NVGAVLMGDG LKIQEGDSVK ATGKIAQVPV GEAFLGRVVD ALARPIDGRG
     DIKADGTRLI ESPAPGIIAR RSVYEPLQTG LVSIDAMIPI GRGQRELIIG DRQTGKTAVA
     TDTIINQKGG DVICVYVAIG QKASSVAQIV TTLTNAGAMD YTIIVSETAD SPATLQYLAP
     YTGASLAEYF MYTGRATLII YDDLSKQAQA YRQMSLLLKR PPGREAYPGD VFYLHSRLLE
     RAAKLSDALG EGSMTALPII ETQGGDVSAY IPTNVISITD GQVFLSADLF NSGIRPAINV
     GISVSRVGSA AQIKAMKQVA GTLKLELAQF AELEAFSQFA SDLDQATQNQ LARGARLREL
     LKQAQNQPLS VDMQVATIYT GTQGHLDDLA VGQVRSFLTG LREYIKTNKA SFCSDVTSSK
     KFGPEAEEML KAAIAEYKAI FKAS