ID   ATPA_EUGGR              Reviewed;         506 AA.
AC   P30392;
DT   01-APR-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1993, sequence version 1.
DT   03-AUG-2022, entry version 139.
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   Euglena gracilis.
OG   Plastid; Chloroplast.
OC   Eukaryota; Discoba; Euglenozoa; Euglenida; Spirocuta; Euglenophyceae;
OC   Euglenales; Euglenaceae; Euglena.
OX   NCBI_TaxID=3039;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Z / UTEX 753;
RX   PubMed=8435857; DOI=10.1007/bf00351506;
RA   Drager R.G., Hallick R.B.;
RT   "A novel Euglena gracilis chloroplast operon encoding four ATP synthase
RT   subunits and two ribosomal proteins contains 17 introns.";
RL   Curr. Genet. 23:271-280(1993).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Z / UTEX 753;
RX   PubMed=8346031; DOI=10.1093/nar/21.15.3537;
RA   Hallick R.B., Hong L., Drager R.G., Favreau M.R., Monfort A., Orsat B.,
RA   Spielmann A., Stutz E.;
RT   "Complete sequence of Euglena gracilis chloroplast DNA.";
RL   Nucleic Acids Res. 21:3537-3544(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; Z11874; CAA77932.1; -; Genomic_DNA.
DR   EMBL; X70810; CAA50115.1; -; Genomic_DNA.
DR   PIR; S29801; PWEGA.
DR   RefSeq; NP_041928.1; NC_001603.2.
DR   AlphaFoldDB; P30392; -.
DR   SMR; P30392; -.
DR   PRIDE; P30392; -.
DR   GeneID; 807483; -.
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..506
FT                   /note="ATP synthase subunit alpha, chloroplastic"
FT                   /id="PRO_0000144375"
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   506 AA;  55188 MW;  FA258EBD2B651109 CRC64;
     MIRVRPNEVT RIIRQQVKKY RQELKIVNVG TVLQVGDGIA RIYGLEKVMA GELVEFDEGT
     IGIALNLEAD NVGAVLMGEA TNLKEGASVK TTGKIAQIPV GRGFLGRVVD ALARPIDGKG
     DIASFTTRLI ESPAPGIVSR RSVHEPLQTG LIAIDAMIPI GRGQRELIIG DRQTGKTAVA
     TDTILNQKGQ GVICVYVAIG QKASSVSQIV TTLEKRGAME YTIIVAENAD SSATLQYLAP
     YTGAALAEYF MYNGKHTLVI YDDLSKQAQA YRQMSLLLRR PPGREAYPGD VFYLHSRLLE
     RAAKLSDELG QGSMTALPIV ETQAGDVSAY IPTNVISITD GQVFLSADIF NSGIRPAINV
     GISVSRVGSA AQIKAMKQVA GKLKLELAQF AELEAFSQFA SDLDQATQNQ LARGARLREL
     LKQPQASPLS VADQVATIYT GINGYLDDIN LEDVRGFLIE LREHINNEKP TFKEIINKTK
     TFTQEAELLL KFTIIDLKKN FKKRIK