ID   ATPF_META1              Reviewed;         176 AA.
AC   B3PLV4;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 69.
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};
GN   OrderedLocusNames=MARTH_orf043;
OS   Metamycoplasma arthritidis (strain 158L3-1) (Mycoplasma arthritidis).
OC   Bacteria; Tenericutes; Mycoplasmoidales; Metamycoplasmataceae;
OC   Metamycoplasma.
OX   NCBI_TaxID=243272;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=158L3-1;
RX   PubMed=18573899; DOI=10.1128/iai.00516-08;
RA   Dybvig K., Zuhua C., Lao P., Jordan D.S., French C.T., Tu A.H.,
RA   Loraine A.E.;
RT   "Genome of Mycoplasma arthritidis.";
RL   Infect. Immun. 76:4000-4008(2008).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP001047; ACF07006.1; -; Genomic_DNA.
DR   RefSeq; WP_012497963.1; NC_011025.1.
DR   AlphaFoldDB; B3PLV4; -.
DR   SMR; B3PLV4; -.
DR   STRING; 243272.MARTH_orf043; -.
DR   PRIDE; B3PLV4; -.
DR   EnsemblBacteria; ACF07006; ACF07006; MARTH_orf043.
DR   KEGG; mat:MARTH_orf043; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_4_3_14; -.
DR   OMA; IKSKYYM; -.
DR   OrthoDB; 1872944at2; -.
DR   Proteomes; UP000008812; 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 membrane; CF(0); Hydrogen ion transport; Ion transport;
KW   Membrane; Reference proteome; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..176
FT                   /note="ATP synthase subunit b"
FT                   /id="PRO_0000368607"
FT   TRANSMEM        27..47
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ   SEQUENCE   176 AA;  20315 MW;  4E8B3C3C02584D2F CRC64;
     MNFNINQSSI SDAITKTFGN LTINWPFFVF SFLTLILVVT IVTLLVYKPL KKMLKNRQNF
     IQNNIDESIK AKEAALKVQE EIDEKIIESS KHANQIIEQA KLERERIINN GIEVSNKKAE
     IIIEQANILV TKSQAEFENK QRKIIVENAV EIAKKIIGRE IRDKDNLKMI EEMLES