ID   ATP6_RHOP2              Reviewed;         248 AA.
AC   Q2IRA6;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   25-MAY-2022, entry version 92.
DE   RecName: Full=ATP synthase subunit a {ECO:0000255|HAMAP-Rule:MF_01393};
DE   AltName: Full=ATP synthase F0 sector subunit a {ECO:0000255|HAMAP-Rule:MF_01393};
DE   AltName: Full=F-ATPase subunit 6 {ECO:0000255|HAMAP-Rule:MF_01393};
GN   Name=atpB {ECO:0000255|HAMAP-Rule:MF_01393}; OrderedLocusNames=RPB_4571;
OS   Rhodopseudomonas palustris (strain HaA2).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Rhodopseudomonas.
OX   NCBI_TaxID=316058;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HaA2;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Chain P., Malfatti S., Shin M.,
RA   Vergez L., Schmutz J., Larimer F., Land M., Hauser L., Pelletier D.A.,
RA   Kyrpides N., Anderson I., Oda Y., Harwood C.S., Richardson P.;
RT   "Complete sequence of Rhodopseudomonas palustris HaA2.";
RL   Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Key component of the proton channel; it plays a direct role
CC       in the translocation of protons across the membrane.
CC       {ECO:0000255|HAMAP-Rule:MF_01393}.
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_01393}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01393}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01393}.
CC   -!- SIMILARITY: Belongs to the ATPase A chain family. {ECO:0000255|HAMAP-
CC       Rule:MF_01393}.
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DR   EMBL; CP000250; ABD09254.1; -; Genomic_DNA.
DR   RefSeq; WP_011443437.1; NC_007778.1.
DR   AlphaFoldDB; Q2IRA6; -.
DR   SMR; Q2IRA6; -.
DR   STRING; 316058.RPB_4571; -.
DR   EnsemblBacteria; ABD09254; ABD09254; RPB_4571.
DR   KEGG; rpb:RPB_4571; -.
DR   eggNOG; COG0356; Bacteria.
DR   HOGENOM; CLU_041018_0_2_5; -.
DR   OMA; FFDQFMS; -.
DR   OrthoDB; 867266at2; -.
DR   Proteomes; UP000008809; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045263; C:proton-transporting ATP synthase complex, coupling factor F(o); IEA:UniProtKB-KW.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.20.120.220; -; 1.
DR   HAMAP; MF_01393; ATP_synth_a_bact; 1.
DR   InterPro; IPR000568; ATP_synth_F0_asu.
DR   InterPro; IPR023011; ATP_synth_F0_asu_AS.
DR   InterPro; IPR045083; ATP_synth_F0_asu_bact/mt.
DR   InterPro; IPR035908; F0_ATP_A_sf.
DR   PANTHER; PTHR11410; PTHR11410; 1.
DR   Pfam; PF00119; ATP-synt_A; 1.
DR   PRINTS; PR00123; ATPASEA.
DR   SUPFAM; SSF81336; SSF81336; 1.
DR   TIGRFAMs; TIGR01131; ATP_synt_6_or_A; 1.
DR   PROSITE; PS00449; ATPASE_A; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; Cell inner membrane; Cell membrane; CF(0);
KW   Hydrogen ion transport; Ion transport; Membrane; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..248
FT                   /note="ATP synthase subunit a"
FT                   /id="PRO_0000362420"
FT   TRANSMEM        25..45
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        83..103
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        113..133
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        142..162
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        192..212
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        215..235
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
SQ   SEQUENCE   248 AA;  26833 MW;  1DE0A5A76D8038F3 CRC64;
     MAADPIHQFQ ITKLFSLGHI GGQEIAFTNS SAYMFAAVAI IAVMMLAPGR QLVPGRFQSV
     AELSYEFVAN MIRSTAGKEG LKFFPLVFSL FMFIAVSNLV GIIPYTFTVS SHLIVTVTLA
     MLVFVTVLVY GLAKNGLKFF KLFVPSGVPI YILPLVVFIE VISFFLKPVS HSVRLFANML
     AGHIALKVFA SFIAMLGALG VVGWVGAVLP LGLTIALTAL ELLVAFLQAY VFAILTCIYL
     NDAIHPGH