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Entry: A6QB64_SULNB
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ID   A6QB64_SULNB            Unreviewed;       140 AA.
AC   A6QB64;
DT   21-AUG-2007, integrated into UniProtKB/TrEMBL.
DT   21-AUG-2007, sequence version 1.
DT   27-MAR-2024, entry version 102.
DE   RecName: Full=ATP synthase subunit b {ECO:0000256|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATP synthase F(0) sector subunit b {ECO:0000256|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATPase subunit I {ECO:0000256|HAMAP-Rule:MF_01398};
DE   AltName: Full=F-type ATPase subunit b {ECO:0000256|HAMAP-Rule:MF_01398};
DE            Short=F-ATPase subunit b {ECO:0000256|HAMAP-Rule:MF_01398};
GN   Name=atpF' {ECO:0000313|EMBL:BAF72723.1};
GN   Synonyms=atpF {ECO:0000256|HAMAP-Rule:MF_01398};
GN   OrderedLocusNames=SUN_1776 {ECO:0000313|EMBL:BAF72723.1};
OS   Sulfurovum sp. (strain NBC37-1).
OC   Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC   Sulfurovaceae; Sulfurovum.
OX   NCBI_TaxID=387093 {ECO:0000313|EMBL:BAF72723.1, ECO:0000313|Proteomes:UP000006378};
RN   [1] {ECO:0000313|EMBL:BAF72723.1, ECO:0000313|Proteomes:UP000006378}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NBC37-1 {ECO:0000313|EMBL:BAF72723.1,
RC   ECO:0000313|Proteomes:UP000006378};
RX   PubMed=17615243; DOI=10.1073/pnas.0700687104;
RA   Nakagawa S., Takaki Y., Shimamura S., Reysenbach A.-L., Takai K.,
RA   Horikoshi K.;
RT   "Deep-sea vent epsilon-proteobacterial genomes provide insights into
RT   emergence of pathogens.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:12146-12150(2007).
CC   -!- FUNCTION: Component of the F(0) channel, it forms part of the
CC       peripheral stalk, linking F(1) to F(0). {ECO:0000256|HAMAP-
CC       Rule:MF_01398}.
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.
CC       {ECO:0000256|ARBA:ARBA00025198, ECO:0000256|HAMAP-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:0000256|HAMAP-Rule:MF_01398}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000256|HAMAP-
CC       Rule:MF_01398}; Single-pass membrane protein {ECO:0000256|HAMAP-
CC       Rule:MF_01398}. Membrane {ECO:0000256|ARBA:ARBA00004167}; Single-pass
CC       membrane protein {ECO:0000256|ARBA:ARBA00004167}.
CC   -!- SIMILARITY: Belongs to the ATPase B chain family.
CC       {ECO:0000256|ARBA:ARBA00005513, ECO:0000256|HAMAP-Rule:MF_01398,
CC       ECO:0000256|RuleBase:RU003848}.
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DR   EMBL; AP009179; BAF72723.1; -; Genomic_DNA.
DR   RefSeq; WP_012083533.1; NC_009663.1.
DR   AlphaFoldDB; A6QB64; -.
DR   STRING; 387093.SUN_1776; -.
DR   KEGG; sun:SUN_1776; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_10_0_7; -.
DR   OrthoDB; 5334261at2; -.
DR   Proteomes; UP000006378; Chromosome.
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:0016787; F:hydrolase activity; IEA:UniProtKB-KW.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   CDD; cd06503; ATP-synt_Fo_b; 1.
DR   HAMAP; MF_01398; ATP_synth_b_bprime; 1.
DR   InterPro; IPR002146; ATP_synth_b/b'su_bac/chlpt.
DR   InterPro; IPR035566; Ribosomal_protein_bL20_C.
DR   PANTHER; PTHR33445:SF2; ATP SYNTHASE SUBUNIT B; 1.
DR   PANTHER; PTHR33445; ATP SYNTHASE SUBUNIT B', CHLOROPLASTIC; 1.
DR   Pfam; PF00430; ATP-synt_B; 1.
DR   SUPFAM; SSF74731; Ribosomal protein L20; 1.
PE   3: Inferred from homology;
KW   ATP synthesis {ECO:0000256|ARBA:ARBA00023310, ECO:0000256|HAMAP-
KW   Rule:MF_01398}; Cell inner membrane {ECO:0000256|HAMAP-Rule:MF_01398};
KW   Cell membrane {ECO:0000256|HAMAP-Rule:MF_01398};
KW   CF(0) {ECO:0000256|ARBA:ARBA00022547, ECO:0000256|HAMAP-Rule:MF_01398};
KW   Coiled coil {ECO:0000256|SAM:Coils};
KW   Hydrogen ion transport {ECO:0000256|ARBA:ARBA00022781, ECO:0000256|HAMAP-
KW   Rule:MF_01398}; Hydrolase {ECO:0000313|EMBL:BAF72723.1};
KW   Ion transport {ECO:0000256|ARBA:ARBA00023065, ECO:0000256|HAMAP-
KW   Rule:MF_01398};
KW   Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01398};
KW   Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW   Rule:MF_01398};
KW   Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW   Rule:MF_01398};
KW   Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_01398}.
FT   TRANSMEM        6..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01398"
FT   COILED          60..121
FT                   /evidence="ECO:0000256|SAM:Coils"
SQ   SEQUENCE   140 AA;  15721 MW;  0B80155944511F93 CRC64;
     MLDIHLPLML FVLVLFLILL VVLNNMLFQP LLKFMDDRDR SIAKDLEAAK GLSGNSDELN
     AQAAENIDNA KAEAAAIRQK AIDEEKSLAA SKVEAKQEEL NKKYENFAQK LASDKEELKN
     SLLSQMPLFK ESLKAKFSKL
//
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