ID   ATPA_GALSU              Reviewed;         505 AA.
AC   P35009;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1994, sequence version 1.
DT   03-AUG-2022, entry version 129.
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};
OS   Galdieria sulphuraria (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Galdieria.
OX   NCBI_TaxID=130081;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=14-1-1 / Isolate 107.79/Goettingen;
RX   PubMed=8219057; DOI=10.1007/bf00021420;
RA   Kostrzewa M., Zetsche K.;
RT   "Organization of plastid-encoded ATPase genes and flanking regions
RT   including homologues of infB and tsf in the thermophilic red alga Galdieria
RT   sulphuraria.";
RL   Plant Mol. Biol. 23:67-76(1993).
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; X67814; CAA48025.1; -; Genomic_DNA.
DR   AlphaFoldDB; P35009; -.
DR   SMR; P35009; -.
DR   STRING; 130081.XP_005705038.1; -.
DR   eggNOG; KOG1353; Eukaryota.
DR   eggNOG; KOG1662; Eukaryota.
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-UniRule.
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   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; Thylakoid;
KW   Translocase; Transport.
FT   CHAIN           1..505
FT                   /note="ATP synthase subunit alpha, chloroplastic"
FT                   /id="PRO_0000144376"
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   505 AA;  54962 MW;  B617F8AEE18D6DA1 CRC64;
     MVNIRPDEIS TIIKEQIEKY ETEVRFSAVG TVLQVGHGIA RVYGLEEVMA GELLEFEDKT
     IGIALNLEND NVGVVLMGDD SNILEGSPVK STGKIAEIPV GEEFLGRVVN ALGKSIDGKV
     EPVCSENRLI EMLAPGIIVR QSVCEPLQTG ITAIDSMIPI GRGQRELIIG DRQTGKTSIA
     LDTIINQKDQ DVICIYAAIG QKASSVAQVV STLEEKGALG YTIIVAANAD EPASLQYIAP
     YTAASLAEYF MYKGKATLVI YDDLTKQAQA YRQMSLLLRR PPGREAYPGD VFYLHSRLLE
     RAAKLNQKLG GGSMTALPII ETQAGDVSAY IPTNVISITD GQIFLSSDLF NSGIRPAINV
     GISVSRVGSA AQIKAMKQVA GKLKLELAQF AELEAFSQFA SDLDKATQNQ LARGQRLREM
     LKQSQNSPIP VEEQIAIIYS GINGYLDEIP LQKVSSFIKA LREYIVNSKS KFIELIKSNK
     QLVSEAEEIL KQSIQETKAT FLASE