ATPF_PROM1
ID ATPF_PROM1 Reviewed; 170 AA.
AC A2C4J7;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 20-FEB-2007, sequence version 1.
DT 25-MAY-2022, entry version 83.
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=NATL1_18511;
OS Prochlorococcus marinus (strain NATL1A).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=167555;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NATL1A;
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
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; CP000553; ABM76407.1; -; Genomic_DNA.
DR RefSeq; WP_011295329.1; NC_008819.1.
DR AlphaFoldDB; A2C4J7; -.
DR SMR; A2C4J7; -.
DR STRING; 167555.NATL1_18511; -.
DR EnsemblBacteria; ABM76407; ABM76407; NATL1_18511.
DR KEGG; pme:NATL1_18511; -.
DR eggNOG; COG0711; Bacteria.
DR HOGENOM; CLU_079215_8_1_3; -.
DR OMA; NILNWAV; -.
DR Proteomes; UP000002592; 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; 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; CF(0); Hydrogen ion transport; Ion transport; Membrane;
KW Thylakoid; Transmembrane; Transmembrane helix; Transport.
FT CHAIN 1..170
FT /note="ATP synthase subunit b"
FT /id="PRO_0000368671"
FT TRANSMEM 22..44
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ SEQUENCE 170 AA; 18854 MW; C7A1F837ECBB3E90 CRC64;
MTPLIFASEG FGLNLNIFET NIINLAVVVF GLYKFLPGFL GKILEKRRTT ILSDLKEAEE
RLAQAQDSLS QAKDDLSSAK QKADKIRNDC KVRAEAIRLE SEKRTVEEMA RIKQGAASDL
SAEAARVTSQ LRKEAAELAI EKALAMLPKK LDSNTQDNFL KQSIKNIGDN