ID   ATP6_CERS4              Reviewed;         261 AA.
AC   Q3IZ12;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   19-FEB-2014, sequence version 2.
DT   25-MAY-2022, entry version 94.
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=RHOS4_26540;
GN   ORFNames=RSP_1038;
OS   Cereibacter sphaeroides (strain ATCC 17023 / DSM 158 / JCM 6121 / CCUG
OS   31486 / LMG 2827 / NBRC 12203 / NCIMB 8253 / ATH 2.4.1.) (Rhodobacter
OS   sphaeroides).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Cereibacter.
OX   NCBI_TaxID=272943;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17023 / DSM 158 / JCM 6121 / CCUG 31486 / LMG 2827 / NBRC 12203
RC   / NCIMB 8253 / ATH 2.4.1.;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Richardson P., Mackenzie C.,
RA   Choudhary M., Larimer F., Hauser L.J., Land M., Donohue T.J., Kaplan S.;
RT   "Complete sequence of chromosome 1 of Rhodobacter sphaeroides 2.4.1.";
RL   Submitted (SEP-2005) 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; CP000143; ABA80222.2; -; Genomic_DNA.
DR   RefSeq; WP_002721375.1; NZ_CP030271.1.
DR   RefSeq; YP_354123.2; NC_007493.2.
DR   AlphaFoldDB; Q3IZ12; -.
DR   SMR; Q3IZ12; -.
DR   STRING; 272943.RSP_1038; -.
DR   EnsemblBacteria; ABA80222; ABA80222; RSP_1038.
DR   GeneID; 57471371; -.
DR   KEGG; rsp:RSP_1038; -.
DR   PATRIC; fig|272943.9.peg.3012; -.
DR   eggNOG; COG0356; Bacteria.
DR   OMA; FFDQFMS; -.
DR   Proteomes; UP000002703; Chromosome 1.
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; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..261
FT                   /note="ATP synthase subunit a"
FT                   /id="PRO_0000362413"
FT   TRANSMEM        45..65
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        107..127
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        133..153
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        162..182
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        209..229
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        232..252
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
SQ   SEQUENCE   261 AA;  28492 MW;  265CD946726B1A46 CRC64;
     METEVEHTGL AIHPMDQFIV KKLFCHTEST APMNECTTNI HWYDITNVTM WMAIAVLVIA
     AILVLGTRRR AIVPSRSQSV AELLYGFIHN MVEEVTGHEG VKYFPYVMTL FLFVLCGNVL
     GLLPLSFTTT SHMAVTVPLA LMVFVGVTAL GFMKNGPGFL KMFWVTSAPL AIRPVLAVIE
     VISYFVRPVS HSIRLAGNMM AGHAVIKVIA GFASIVVVSP VVVGAVTAIY ALELLVAVVQ
     AYVFTILTCV YLRDAVGDAH H