ID   ATPF2_CERS4             Reviewed;         180 AA.
AC   Q3IZ14;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 83.
DE   RecName: Full=ATP synthase subunit b 2;
DE   AltName: Full=ATP synthase F(0) sector subunit b 2;
DE   AltName: Full=ATPase subunit I 2;
DE   AltName: Full=F-type ATPase subunit b 2;
DE            Short=F-ATPase subunit b 2;
GN   Name=atpF2; Synonyms=atpG, atpX; OrderedLocusNames=RHOS4_26520;
GN   ORFNames=RSP_1036;
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: F(1)F(0) ATP synthase produces ATP from ADP in the presence
CC       of a proton or sodium gradient. F-type ATPases consist of two
CC       structural domains, F(1) containing the extramembraneous catalytic core
CC       and F(0) containing the membrane proton channel, linked together by a
CC       central stalk and a peripheral stalk. During catalysis, ATP synthesis
CC       in the catalytic domain of F(1) is coupled via a rotary mechanism of
CC       the central stalk subunits to proton translocation (By similarity).
CC       {ECO:0000250}.
CC   -!- FUNCTION: Component of the F(0) channel, it forms part of the
CC       peripheral stalk, linking F(1) to F(0). The b'-subunit is a diverged
CC       and duplicated form of b found in plants and photosynthetic bacteria
CC       (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: F-type ATPases have 2 components, F(1) - the catalytic core
CC       - and F(0) - the membrane proton channel. F(1) has five subunits:
CC       alpha(3), beta(3), gamma(1), delta(1), epsilon(1). F(0) has three main
CC       subunits: a(1), b(2) and c(10-14). The alpha and beta chains form an
CC       alternating ring which encloses part of the gamma chain. F(1) is
CC       attached to F(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       (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000250}; Single-pass
CC       membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ATPase B chain family. {ECO:0000305}.
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DR   EMBL; CP000143; ABA80220.1; -; Genomic_DNA.
DR   RefSeq; WP_009563084.1; NZ_CP030271.1.
DR   RefSeq; YP_354121.1; NC_007493.2.
DR   AlphaFoldDB; Q3IZ14; -.
DR   SMR; Q3IZ14; -.
DR   STRING; 272943.RSP_1036; -.
DR   EnsemblBacteria; ABA80220; ABA80220; RSP_1036.
DR   GeneID; 57471369; -.
DR   GeneID; 67447809; -.
DR   KEGG; rsp:RSP_1036; -.
DR   PATRIC; fig|272943.9.peg.3010; -.
DR   eggNOG; COG0711; Bacteria.
DR   OMA; NQIFWLV; -.
DR   PhylomeDB; Q3IZ14; -.
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   HAMAP; MF_01398; ATP_synth_b_bprime; 1.
DR   InterPro; IPR002146; ATP_synth_b/b'su_bac/chlpt.
DR   Pfam; PF00430; ATP-synt_B; 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..180
FT                   /note="ATP synthase subunit b 2"
FT                   /id="PRO_0000369036"
FT   TRANSMEM        33..53
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   180 AA;  18754 MW;  93B8D9E6819690F4 CRC64;
     METEVHEAAG AAGHAGQAVG MPQLNFDYWP NQIFWLLVTL VAIYFLLTRV ALPRIGAVLA
     ERRGTITNDL AAAEELKQKA VLAEKAYNEA LAKARAEAQA IVAETRAAIQ AELDEATAKA
     DAEISAKSAE SEARIAEIRA GALQSVSEVA KDTAEALVAA LGGKSDAAAV DAAVAARMKG