ID   ATPA_STRR6              Reviewed;         501 AA.
AC   Q7CRB1;
DT   30-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 121.
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=spr1362;
OS   Streptococcus pneumoniae (strain ATCC BAA-255 / R6).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=171101;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], SUBUNIT, SUBCELLULAR LOCATION, AND
RP   INDUCTION.
RX   PubMed=11580837; DOI=10.1046/j.1365-2958.2001.02597.x;
RA   Martin-Galiano A.J., Ferrandiz M.J., de la Campa A.G.;
RT   "The promoter of the operon encoding the F0F1 ATPase of Streptococcus
RT   pneumoniae is inducible by pH.";
RL   Mol. Microbiol. 41:1327-1338(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-255 / R6;
RX   PubMed=11544234; DOI=10.1128/jb.183.19.5709-5717.2001;
RA   Hoskins J., Alborn W.E. Jr., Arnold J., Blaszczak L.C., Burgett S.,
RA   DeHoff B.S., Estrem S.T., Fritz L., Fu D.-J., Fuller W., Geringer C.,
RA   Gilmour R., Glass J.S., Khoja H., Kraft A.R., Lagace R.E., LeBlanc D.J.,
RA   Lee L.N., Lefkowitz E.J., Lu J., Matsushima P., McAhren S.M., McHenney M.,
RA   McLeaster K., Mundy C.W., Nicas T.I., Norris F.H., O'Gara M., Peery R.B.,
RA   Robertson G.T., Rockey P., Sun P.-M., Winkler M.E., Yang Y.,
RA   Young-Bellido M., Zhao G., Zook C.A., Baltz R.H., Jaskunas S.R.,
RA   Rosteck P.R. Jr., Skatrud P.L., Glass J.I.;
RT   "Genome of the bacterium Streptococcus pneumoniae strain R6.";
RL   J. Bacteriol. 183:5709-5717(2001).
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 three main
CC       subunits: a(1), b(2) and c(9-12). The alpha and beta chains form an
CC       alternating ring which encloses part of the gamma chain. CF(1) is
CC       attached to CF(0) by a central stalk formed by the gamma and epsilon
CC       chains, while a peripheral stalk is formed by the delta and b chains.
CC       {ECO:0000255|HAMAP-Rule:MF_01346, ECO:0000269|PubMed:11580837}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305|PubMed:11580837};
CC       Peripheral membrane protein {ECO:0000305|PubMed:11580837}.
CC   -!- INDUCTION: Induced by a decrease in external pH from 7.5 to 5.7.
CC       {ECO:0000269|PubMed:11580837}.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000255|HAMAP-Rule:MF_01346}.
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DR   EMBL; AF368465; AAL66411.1; -; Genomic_DNA.
DR   EMBL; AE007317; AAL00166.1; -; Genomic_DNA.
DR   RefSeq; NP_358955.1; NC_003098.1.
DR   RefSeq; WP_000996639.1; NC_003098.1.
DR   AlphaFoldDB; Q7CRB1; -.
DR   SMR; Q7CRB1; -.
DR   STRING; 171101.spr1362; -.
DR   EnsemblBacteria; AAL00166; AAL00166; spr1362.
DR   GeneID; 60233309; -.
DR   KEGG; spr:spr1362; -.
DR   PATRIC; fig|171101.6.peg.1476; -.
DR   eggNOG; COG0056; Bacteria.
DR   HOGENOM; CLU_010091_2_1_9; -.
DR   OMA; LQAPGVM; -.
DR   Proteomes; UP000000586; Chromosome.
DR   GO; GO:0005886; C:plasma 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; 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.
PE   1: Evidence at protein level;
KW   ATP synthesis; ATP-binding; Cell membrane; CF(1); Hydrogen ion transport;
KW   Ion transport; Membrane; Nucleotide-binding; Reference proteome;
KW   Translocase; Transport.
FT   CHAIN           1..501
FT                   /note="ATP synthase subunit alpha"
FT                   /id="PRO_0000238365"
FT   BINDING         169..176
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01346"
FT   SITE            362
FT                   /note="Required for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01346"
SQ   SEQUENCE   501 AA;  54645 MW;  7B11755F366B0357 CRC64;
     MAINAQEISA LIKQQIENFK PNFDVTETGV VTYIGDGIAR AHGLENVMSG ELLNFENGSY
     GMAQNLESTD VGIIILGDFT DIREGDTIRR TGKIMEVPVG ESLIGRVVDP LGRPVDGLGE
     IHTDKTRPVE APAPGVMQRK SVSEPLQTGL KAIDALVPIG RGQRELIIGD RQTGKTTIAI
     DTILNQKDQD MICIYVAIGQ KESTVRTQVE TLRQYGALDY TIVVTASASQ PSPLLFLAPY
     AGVAMAEEFM YQGKHVLIVY DDLSKQAVAY RELSLLLRRP PGREAFPGDV FYLHSRLLER
     SAKVSDELGG GSITALPFIE TQAGDISAYI ATNVISITDG QIFLGDGLFN AGIRPAIDAG
     SSVSRVGGSA QIKAMKKVAG TLRIDLASYR ELEAFTKFGS DLDAATQAKL NRGRRTVEVL
     KQPVHKPLPV EKQVTILYAL THGFLDTVPV DDIVRFEEEF HAFFDAQHPE ILETIRDTKD
     LPEEAVLDAA ITEFLNQSSF Q