ID   ATPA_TRIV2              Reviewed;         506 AA.
AC   Q3M9W0;
DT   30-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 2.
DT   03-AUG-2022, entry version 108.
DE   RecName: Full=ATP synthase subunit alpha {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=Ava_2611;
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=240292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937;
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
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(1), b(1), b'(1) and c(9-12) (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01346}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01346}.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000255|HAMAP-Rule:MF_01346}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABA22226.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000117; ABA22226.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q3M9W0; -.
DR   SMR; Q3M9W0; -.
DR   STRING; 240292.Ava_2611; -.
DR   EnsemblBacteria; ABA22226; ABA22226; Ava_2611.
DR   KEGG; ava:Ava_2611; -.
DR   eggNOG; COG0056; Bacteria.
DR   HOGENOM; CLU_010091_2_1_3; -.
DR   Proteomes; UP000002533; Chromosome.
DR   GO; GO:0031676; C:plasma membrane-derived 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); Hydrogen ion transport; Ion transport;
KW   Membrane; Nucleotide-binding; Thylakoid; Translocase; Transport.
FT   CHAIN           1..506
FT                   /note="ATP synthase subunit alpha"
FT                   /id="PRO_0000238187"
FT   BINDING         171..178
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01346"
FT   SITE            364
FT                   /note="Required for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01346"
SQ   SEQUENCE   506 AA;  54438 MW;  6CF2834D06E7449E CRC64;
     MSISIRPDEI SSIIQQQIEQ YDQEVKVANV GTVLQVGDGI ARIYGLEKAM AGELLEFEDG
     TVGIAQNLEE DNVGAVLMGE GREIQEGSTV TATGRIAQIG VGEALIGRVV DALGRAIDGK
     GDIKASESRL IESPAPGIIA RRSVHEPMQT GITAIDSMIP IGRGQRELII GDRQTGKTAI
     AIDTIINQKG EDVVCVYVAI GQKASTVANV VQTLQEKGAM DYTVVVAAGA SEPATLQFLA
     PYTGATIAEY FMYKGKATLV IYDDLSKQAQ AYRQMSLLLR RPPGREAYPG DVFYIHSRLL
     ERAAKLSDEL GKGSMTALPI IETQAGDVSA YIPTNVISIT DGQIFLSSDL FNAGIRPAVN
     PGISVSRVGS AAQTKAMKKV AGKIKLELAQ FDDLQAFAQF ASDLDKATQD QLARGQRLRE
     LLKQSQNQPL SVAEQVAILY AGINGYLDDI PVDKVTTFTK GLRDYLKSGV NPYFQDVQSK
     KTLGDDEEKA LKAALDDYKK TFKATA