ID   ATPF_STRMU              Reviewed;         165 AA.
AC   P95785;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   28-NOV-2002, sequence version 2.
DT   03-AUG-2022, entry version 131.
DE   RecName: Full=ATP synthase subunit b {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATP synthase F(0) sector subunit b {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATPase subunit I {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=F-type ATPase subunit b {ECO:0000255|HAMAP-Rule:MF_01398};
DE            Short=F-ATPase subunit b {ECO:0000255|HAMAP-Rule:MF_01398};
GN   Name=atpF {ECO:0000255|HAMAP-Rule:MF_01398}; OrderedLocusNames=SMU_1532;
OS   Streptococcus mutans serotype c (strain ATCC 700610 / UA159).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=210007;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=GS-5;
RX   PubMed=8996091; DOI=10.1016/s0378-1119(96)00502-1;
RA   Smith A.J., Quivey R.G., Faustoferri R.C.;
RT   "Cloning and nucleotide sequence analysis of the Streptococcus mutans
RT   membrane-bound, proton-translocating ATPase operon.";
RL   Gene 183:87-96(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700610 / UA159;
RX   PubMed=12397186; DOI=10.1073/pnas.172501299;
RA   Ajdic D.J., McShan W.M., McLaughlin R.E., Savic G., Chang J., Carson M.B.,
RA   Primeaux C., Tian R., Kenton S., Jia H.G., Lin S.P., Qian Y., Li S.,
RA   Zhu H., Najar F.Z., Lai H., White J., Roe B.A., Ferretti J.J.;
RT   "Genome sequence of Streptococcus mutans UA159, a cariogenic dental
RT   pathogen.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:14434-14439(2002).
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 membrane {ECO:0000255|HAMAP-Rule:MF_01398};
CC       Single-pass membrane protein {ECO:0000255|HAMAP-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; U31170; AAD13379.1; -; Genomic_DNA.
DR   EMBL; AE014133; AAN59182.1; -; Genomic_DNA.
DR   PIR; JC5737; JC5737.
DR   RefSeq; NP_721876.1; NC_004350.2.
DR   RefSeq; WP_002262944.1; NC_004350.2.
DR   AlphaFoldDB; P95785; -.
DR   SMR; P95785; -.
DR   STRING; 210007.SMU_1532; -.
DR   PRIDE; P95785; -.
DR   EnsemblBacteria; AAN59182; AAN59182; SMU_1532.
DR   KEGG; smu:SMU_1532; -.
DR   PATRIC; fig|210007.7.peg.1364; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_4_2_9; -.
DR   OMA; FAWKPIL; -.
DR   PhylomeDB; P95785; -.
DR   SABIO-RK; P95785; -.
DR   Proteomes; UP000002512; 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; IPR028987; ATP_synth_B-like_membr_sf.
DR   InterPro; IPR002146; ATP_synth_b/b'su_bac/chlpt.
DR   InterPro; IPR005864; ATP_synth_F0_bsu_bac.
DR   Pfam; PF00430; ATP-synt_B; 1.
DR   SUPFAM; SSF81573; SSF81573; 1.
DR   TIGRFAMs; TIGR01144; ATP_synt_b; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; Cell membrane; CF(0); Hydrogen ion transport; Ion transport;
KW   Membrane; Reference proteome; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..165
FT                   /note="ATP synthase subunit b"
FT                   /id="PRO_0000082388"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
FT   CONFLICT        41
FT                   /note="A -> T (in Ref. 1; AAD13379)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   165 AA;  17922 MW;  B1DADD506F487413 CRC64;
     MSTLINGTSL GNLLIVTGSF ILLLLLVKKF AWSQLAAIFK AREEKIAKDI DDAENSRQNA
     QVLENKRQVE LNQAKDEAAQ IIDNAKETGK AQESKIITEA HEEAGRLKDK ANQDIATSKA
     EALSSVKADV ADLSVLLAEK IMAKNLDKTA QGDLIDSYLD KLGDA