ID   ATPF2_RHORT             Reviewed;         161 AA.
AC   Q2RPA6;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 85.
DE   RecName: Full=ATP synthase subunit b 2;
DE   AltName: Full=ATP synthase F(0) sector subunit b 2;
DE   AltName: Full=ATPase subunit I 2;
DE   AltName: Full=F-type ATPase subunit b 2;
DE            Short=F-ATPase subunit b 2;
GN   Name=atpF2; Synonyms=atpG; OrderedLocusNames=Rru_A3244;
OS   Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 /
OS   NCIMB 8255 / S1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Rhodospirillum.
OX   NCBI_TaxID=269796;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1;
RX   PubMed=21886856; DOI=10.4056/sigs.1804360;
RA   Munk A.C., Copeland A., Lucas S., Lapidus A., Del Rio T.G., Barry K.,
RA   Detter J.C., Hammon N., Israni S., Pitluck S., Brettin T., Bruce D.,
RA   Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M., Kyrpides N.C.,
RA   Mavromatis K., Richardson P., Rohde M., Goeker M., Klenk H.P., Zhang Y.,
RA   Roberts G.P., Reslewic S., Schwartz D.C.;
RT   "Complete genome sequence of Rhodospirillum rubrum type strain (S1).";
RL   Stand. Genomic Sci. 4:293-302(2011).
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 (By similarity).
CC       {ECO:0000250}.
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       (By similarity). {ECO:0000250}.
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 three main
CC       subunits: a(1), b(2) and c(10-14). The alpha and beta chains form an
CC       alternating ring which encloses part of the gamma chain. F(1) is
CC       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 and b chains
CC       (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000250}; Single-pass
CC       membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ATPase B chain family. {ECO:0000305}.
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DR   EMBL; CP000230; ABC24039.1; -; Genomic_DNA.
DR   RefSeq; WP_011390992.1; NC_007643.1.
DR   RefSeq; YP_428326.1; NC_007643.1.
DR   AlphaFoldDB; Q2RPA6; -.
DR   SMR; Q2RPA6; -.
DR   STRING; 269796.Rru_A3244; -.
DR   PRIDE; Q2RPA6; -.
DR   EnsemblBacteria; ABC24039; ABC24039; Rru_A3244.
DR   KEGG; rru:Rru_A3244; -.
DR   PATRIC; fig|269796.9.peg.3358; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_1_0_5; -.
DR   OMA; NQIFWLV; -.
DR   OrthoDB; 1544382at2; -.
DR   PhylomeDB; Q2RPA6; -.
DR   Proteomes; UP000001929; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma 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; Cell inner membrane; Cell membrane; CF(0);
KW   Hydrogen ion transport; Ion transport; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..161
FT                   /note="ATP synthase subunit b 2"
FT                   /id="PRO_0000369046"
FT   TRANSMEM        13..33
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   161 AA;  17257 MW;  58CD6ADCCFEF8F0E CRC64;
     MPQFDPSSFP SQIVWLVIAL VAMYFVMSRL AIPRLAEVLE QRQRLINDDL KQAEALKAET
     EAAIAAYETA LAEARARAHD EIRAVTEAAA KAAEARNAEV AKALNTRIKD GEARIVQARD
     EALTHVREVA GAVASDIVGK LAGLRVDDAA LTAAVAAAIK E