ID   ATPF2_BARQU             Reviewed;         164 AA.
AC   Q6G0H0;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=ATP synthase subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATP synthase F(0) sector subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATPase subunit I 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=F-type ATPase subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE            Short=F-ATPase subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
GN   Name=atpF2 {ECO:0000255|HAMAP-Rule:MF_01398}; OrderedLocusNames=BQ03160;
OS   Bartonella quintana (strain Toulouse) (Rochalimaea quintana).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bartonellaceae; Bartonella.
OX   NCBI_TaxID=283165;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Toulouse;
RX   PubMed=15210978; DOI=10.1073/pnas.0305659101;
RA   Alsmark U.C.M., Frank A.C., Karlberg E.O., Legault B.-A., Ardell D.H.,
RA   Canbaeck B., Eriksson A.-S., Naeslund A.K., Handley S.A., Huvet M.,
RA   La Scola B., Holmberg M., Andersson S.G.E.;
RT   "The louse-borne human pathogen Bartonella quintana is a genomic derivative
RT   of the zoonotic agent Bartonella henselae.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:9716-9721(2004).
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. {ECO:0000255|HAMAP-
CC       Rule:MF_01398}.
CC   -!- FUNCTION: Component of the F(0) channel, it forms part of the
CC       peripheral stalk, linking F(1) to F(0). {ECO:0000255|HAMAP-
CC       Rule:MF_01398}.
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       {ECO:0000255|HAMAP-Rule:MF_01398}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01398}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01398}.
CC   -!- SIMILARITY: Belongs to the ATPase B chain family. {ECO:0000255|HAMAP-
CC       Rule:MF_01398}.
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DR   EMBL; BX897700; CAF25816.1; -; Genomic_DNA.
DR   RefSeq; WP_011179112.1; NC_005955.1.
DR   AlphaFoldDB; Q6G0H0; -.
DR   SMR; Q6G0H0; -.
DR   STRING; 283165.BQ03160; -.
DR   EnsemblBacteria; CAF25816; CAF25816; BQ03160.
DR   KEGG; bqu:BQ03160; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_6_1_5; -.
DR   OMA; KVPGMMA; -.
DR   OrthoDB; 1585587at2; -.
DR   Proteomes; UP000000597; 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..164
FT                   /note="ATP synthase subunit b 2"
FT                   /id="PRO_0000368345"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ   SEQUENCE   164 AA;  18578 MW;  64262084563B5ECB CRC64;
     MTDTFWAFVG LVLFLALLAY FKVPEMIVHR LDARAKRIKD ELDEALRLRE EAQEVLAEYQ
     RKHAEAEKDA QEIIAAAKRE VEAVVSEART KAEEYVKNRN KLAEQKIAQA EADAIRVVSS
     SAVDLAVSAA RVLIEQELDS NKANELIKES LFEESLTKMK AYLN