ID   ATPF_NOSP7              Reviewed;         190 AA.
AC   B2J056;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   25-MAY-2022, entry version 71.
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=Npun_F4861;
OS   Nostoc punctiforme (strain ATCC 29133 / PCC 73102).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=63737;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29133 / PCC 73102;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Meeks J.C., Elhai J.,
RA   Campbell E.L., Thiel T., Longmire J., Potts M., Atlas R.;
RT   "Complete sequence of chromosome of Nostoc punctiforme ATCC 29133.";
RL   Submitted (APR-2008) 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 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; CP001037; ACC83208.1; -; Genomic_DNA.
DR   RefSeq; WP_012411164.1; NC_010628.1.
DR   AlphaFoldDB; B2J056; -.
DR   SMR; B2J056; -.
DR   STRING; 63737.Npun_F4861; -.
DR   EnsemblBacteria; ACC83208; ACC83208; Npun_F4861.
DR   KEGG; npu:Npun_F4861; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_8_1_3; -.
DR   OMA; NILNWAV; -.
DR   OrthoDB; 1999641at2; -.
DR   PhylomeDB; B2J056; -.
DR   Proteomes; UP000001191; 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   Reference proteome; Thylakoid; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..190
FT                   /note="ATP synthase subunit b"
FT                   /id="PRO_0000368635"
FT   TRANSMEM        34..54
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ   SEQUENCE   190 AA;  20423 MW;  AF624B8CDE953A9A CRC64;
     MGIMGTFLLL AAEANAVHSE LAEGAAEGGF GLNLDIFETN LINLAILVGI LFYFGRKVLS
     NILNERQSNI ATAIQEAEGR LKEAKTALSQ AQEQLKQSQA EAERIRQSAV ENAQKAKEAL
     LAKAVQDVER LKQTAAADLN TETERAIAQL RQRVATLALQ KVESQLKGGI ADDAQQSLID
     RSIAQLGGNV