ATPF_PROMM
ID ATPF_PROMM Reviewed; 172 AA.
AC Q7V5S5;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2003, sequence version 1.
DT 25-MAY-2022, entry version 95.
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=PMT_1469;
OS Prochlorococcus marinus (strain MIT 9313).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=74547;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9313;
RX PubMed=12917642; DOI=10.1038/nature01947;
RA Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA Chisholm S.W.;
RT "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT differentiation.";
RL Nature 424:1042-1047(2003).
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 four main
CC subunits: a(1), b(1), b'(1) and c(10-14). The alpha and beta chains
CC form an alternating ring which encloses part of the gamma chain. F(1)
CC is 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, b and b'
CC chains. {ECO:0000255|HAMAP-Rule:MF_01398}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid 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; BX548175; CAE21644.1; -; Genomic_DNA.
DR RefSeq; WP_011130837.1; NC_005071.1.
DR AlphaFoldDB; Q7V5S5; -.
DR SMR; Q7V5S5; -.
DR STRING; 74547.PMT_1469; -.
DR EnsemblBacteria; CAE21644; CAE21644; PMT_1469.
DR KEGG; pmt:PMT_1469; -.
DR eggNOG; COG0711; Bacteria.
DR HOGENOM; CLU_079215_8_1_3; -.
DR OMA; NILNWAV; -.
DR OrthoDB; 1999641at2; -.
DR Proteomes; UP000001423; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid 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; CF(0); Hydrogen ion transport; Ion transport; Membrane;
KW Reference proteome; Thylakoid; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..172
FT /note="ATP synthase subunit b"
FT /id="PRO_0000368669"
FT TRANSMEM 27..47
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ SEQUENCE 172 AA; 18724 MW; C2BCCEF24030148D CRC64;
MISPLFFASE GGFGLNLDLF DANIVNLAIV IFGLYKFLPP FIGGILERRR VAIMADLQDS
EDRLLKATEA LAAAKKDLAA AHQKAEQIRE DCKLRAEAIR LDSEKRTVEE MARVKQGATA
DLNAEASRAS AQLRREAARM AIENALSALP GKLNTEAQSK LVSQSIKNLG EA