ID   ATPF_MESFL              Reviewed;         177 AA.
AC   Q6F206;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-AUG-2004, sequence version 1.
DT   25-MAY-2022, entry version 90.
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=Mfl111;
OS   Mesoplasma florum (strain ATCC 33453 / NBRC 100688 / NCTC 11704 / L1)
OS   (Acholeplasma florum).
OC   Bacteria; Tenericutes; Mollicutes; Entomoplasmatales; Entomoplasmataceae;
OC   Mesoplasma.
OX   NCBI_TaxID=265311;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33453 / NBRC 100688 / NCTC 11704 / L1;
RA   Birren B.W., Stange-Thomann N., Hafez N., DeCaprio D., Fisher S.,
RA   Butler J., Elkins T., Kodira C.D., Major J., Wang S., Nicol R., Nusbaum C.;
RL   Submitted (JUN-2004) 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. {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; AE017263; AAT75467.1; -; Genomic_DNA.
DR   RefSeq; WP_011183008.1; NC_006055.1.
DR   RefSeq; YP_053351.1; NC_006055.1.
DR   AlphaFoldDB; Q6F206; -.
DR   SMR; Q6F206; -.
DR   STRING; 265311.Mfl111; -.
DR   EnsemblBacteria; AAT75467; AAT75467; Mfl111.
DR   GeneID; 2897675; -.
DR   KEGG; mfl:Mfl111; -.
DR   PATRIC; fig|265311.5.peg.112; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_4_3_14; -.
DR   OMA; IKSKYYM; -.
DR   Proteomes; UP000006647; 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   InterPro; IPR005864; ATP_synth_F0_bsu_bac.
DR   Pfam; PF00430; ATP-synt_B; 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..177
FT                   /note="ATP synthase subunit b"
FT                   /id="PRO_0000368579"
FT   TRANSMEM        19..39
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ   SEQUENCE   177 AA;  19987 MW;  567AEEC8FF9D4A24 CRC64;
     MIFFAETQTA GVPEIITSLF PNLPNFIAHV IATIVLVVIL SKLMYKPFRK TIKDRRNKIN
     ELLSEAVQKQ TEANIGVRKA EALLQDAKTE SSLIIQTSKV DADIQKTHII SEAHKYADII
     KNQAEKDIAQ ERSKIEAEIK TTIVNVAFDA AEQILQTEIN KTKNKKIVDE FIENLDK