ID   ATPF3_SYNP2             Reviewed;         250 AA.
AC   B1XRK5;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=ATP synthase subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATP synthase F(0) sector subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=ATPase subunit I 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE   AltName: Full=F-type ATPase subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
DE            Short=F-ATPase subunit b 2 {ECO:0000255|HAMAP-Rule:MF_01398};
GN   Name=atpF3 {ECO:0000255|HAMAP-Rule:MF_01398, ECO:0000305};
GN   OrderedLocusNames=SYNPCC7002_G0150;
OS   Synechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6) (Agmenellum
OS   quadruplicatum).
OG   Plasmid pAQ7.
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=32049;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27264 / PCC 7002 / PR-6;
RA   Li T., Zhao J., Zhao C., Liu Z., Zhao F., Marquardt J., Nomura C.T.,
RA   Persson S., Detter J.C., Richardson P.M., Lanz C., Schuster S.C., Wang J.,
RA   Li S., Huang X., Cai T., Yu Z., Luo J., Zhao J., Bryant D.A.;
RT   "Complete sequence of Synechococcus sp. PCC 7002.";
RL   Submitted (FEB-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; CP000957; ACB01190.1; -; Genomic_DNA.
DR   RefSeq; WP_012305627.1; NC_010474.1.
DR   AlphaFoldDB; B1XRK5; -.
DR   SMR; B1XRK5; -.
DR   EnsemblBacteria; ACB01190; ACB01190; SYNPCC7002_G0150.
DR   KEGG; syp:SYNPCC7002_G0150; -.
DR   HOGENOM; CLU_070737_0_0_3; -.
DR   OMA; DWFTVIA; -.
DR   Proteomes; UP000001688; Plasmid pAQ7.
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   Plasmid; Reference proteome; Thylakoid; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..250
FT                   /note="ATP synthase subunit b 2"
FT                   /id="PRO_0000368825"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01398"
SQ   SEQUENCE   250 AA;  28658 MW;  EF1CA5545F9C353B CRC64;
     MLIDWFTVFA QILNFVILLG LLRWFLYKPI LQVMAKRQAQ LAEQWQTATD LQAQAHQALE
     QYHQEQQSLQ AQRASFLAAA RAAADEERQR QLLTLREDIQ AQREAWEADL HQEQRAFFHT
     LRQQVSQQVV AIARQALRDL ANATLEQQVV ARFCEQLQHL SPAQRQQINH LETPPEAVFI
     RTAFPLDVTH QAQIKQSLAT TLELDGTPIH FVTVPELGCG IELKLAGQEI VWGLDPYLDQ
     LEQTLAIATR