ID   ATPF2_SYNP1             Reviewed;         159 AA.
AC   Q05367;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1994, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=ATP synthase subunit b' {ECO:0000255|HAMAP-Rule:MF_01399};
DE   AltName: Full=ATP synthase F(0) sector subunit b' {ECO:0000255|HAMAP-Rule:MF_01399};
DE   AltName: Full=ATPase subunit II {ECO:0000255|HAMAP-Rule:MF_01399};
DE   AltName: Full=F-type ATPase subunit b' {ECO:0000255|HAMAP-Rule:MF_01399};
DE            Short=F-ATPase subunit b' {ECO:0000255|HAMAP-Rule:MF_01399};
GN   Name=atpF2 {ECO:0000255|HAMAP-Rule:MF_01399};
GN   Synonyms=atpG {ECO:0000255|HAMAP-Rule:MF_01399};
OS   Synechococcus sp. (strain PCC 6716).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=32048;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8363578; DOI=10.1042/bj2940239;
RA   van Walraven H.S., Lutter R., Walker J.E.;
RT   "Organization and sequences of genes for the subunits of ATP synthase in
RT   the thermophilic cyanobacterium Synechococcus 6716.";
RL   Biochem. J. 294:239-251(1993).
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_01399}.
CC   -!- FUNCTION: Component of the F(0) channel, it forms part of the
CC       peripheral stalk, linking F(1) to F(0). The b'-subunit is a diverged
CC       and duplicated form of b found in plants and photosynthetic bacteria.
CC       {ECO:0000255|HAMAP-Rule:MF_01399}.
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_01399}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01399}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01399}.
CC   -!- SIMILARITY: Belongs to the ATPase B chain family. {ECO:0000255|HAMAP-
CC       Rule:MF_01399}.
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; X70431; CAA49872.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q05367; -.
DR   SMR; Q05367; -.
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   HAMAP; MF_01399; ATP_synth_bprime; 1.
DR   InterPro; IPR034679; ATP_synth_b.
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   Thylakoid; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..159
FT                   /note="ATP synthase subunit b'"
FT                   /id="PRO_0000082428"
FT   TRANSMEM        27..47
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01399"
SQ   SEQUENCE   159 AA;  17920 MW;  EEAEE969BE28E4CE CRC64;
     MVGKASYVRF PLLFRPILER LMFDFDATLP LMAVQFLILT VILNALLYKP LGQALDNRDE
     YIRTNLQQAK ERLQQATELA NQYEQELAYT RREAQAIIEE ARAEAQKIAT AEIAAAQQAL
     QAELMKAQAE IDQQKQATLQ ALEGQVSSLS EQLLAKLLA