ID   ATPF2_RHIL3             Reviewed;         207 AA.
AC   Q1MKT0;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 81.
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; OrderedLocusNames=RL0927;
OS   Rhizobium leguminosarum bv. viciae (strain 3841).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX   NCBI_TaxID=216596;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=3841;
RX   PubMed=16640791; DOI=10.1186/gb-2006-7-4-r34;
RA   Young J.P.W., Crossman L.C., Johnston A.W.B., Thomson N.R., Ghazoui Z.F.,
RA   Hull K.H., Wexler M., Curson A.R.J., Todd J.D., Poole P.S., Mauchline T.H.,
RA   East A.K., Quail M.A., Churcher C., Arrowsmith C., Cherevach I.,
RA   Chillingworth T., Clarke K., Cronin A., Davis P., Fraser A., Hance Z.,
RA   Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA   Rabbinowitsch E., Sanders M., Simmonds M., Whitehead S., Parkhill J.;
RT   "The genome of Rhizobium leguminosarum has recognizable core and accessory
RT   components.";
RL   Genome Biol. 7:R34.1-R34.20(2006).
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; AM236080; CAK06424.1; -; Genomic_DNA.
DR   RefSeq; WP_011650668.1; NC_008380.1.
DR   AlphaFoldDB; Q1MKT0; -.
DR   SMR; Q1MKT0; -.
DR   STRING; 216596.RL0927; -.
DR   EnsemblBacteria; CAK06424; CAK06424; RL0927.
DR   KEGG; rle:RL0927; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_1_2_5; -.
DR   OMA; NQIFWLV; -.
DR   OrthoDB; 1544382at2; -.
DR   Proteomes; UP000006575; 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   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; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..207
FT                   /note="ATP synthase subunit b 2"
FT                   /id="PRO_0000369034"
FT   TRANSMEM        58..78
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   207 AA;  21456 MW;  BA844C92D47776FA CRC64;
     MFFVTPAYAE EAPAAATGTD AHAAPAAGEV HTETGVAEGG HARGPFPPFD STTYASQLLW
     LVITFGVFYL LMQKVIAPRI GAILDQRHTR LSQDVEEAGR LKAEADAAVR TYEGELAAAR
     AKSNAIGSAA RDAAKAKAEQ DRRAVEATLS EKIKAAEVRI GEIKAKAFAD VGAIAEETAA
     AVIDQLIGGT VAKADVAAAV AAAKKEV