ATPF2_PROM9
ID ATPF2_PROM9 Reviewed; 153 AA.
AC Q318T8;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 06-DEC-2005, sequence version 1.
DT 25-MAY-2022, entry version 87.
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};
GN OrderedLocusNames=PMT9312_1547;
OS Prochlorococcus marinus (strain MIT 9312).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=74546;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9312;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Thiel J., Schmutz J., Larimer F.,
RA Land M., Kyrpides N., Lykidis A., Richardson P.;
RT "Complete sequence of Prochlorococcus marinus str. MIT 9312.";
RL Submitted (JUL-2005) 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_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}.
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DR EMBL; CP000111; ABB50607.1; -; Genomic_DNA.
DR RefSeq; WP_011377090.1; NC_007577.1.
DR AlphaFoldDB; Q318T8; -.
DR SMR; Q318T8; -.
DR STRING; 74546.PMT9312_1547; -.
DR EnsemblBacteria; ABB50607; ABB50607; PMT9312_1547.
DR KEGG; pmi:PMT9312_1547; -.
DR eggNOG; COG0711; Bacteria.
DR HOGENOM; CLU_079215_9_0_3; -.
DR OMA; PLMAIQF; -.
DR OrthoDB; 1999641at2; -.
DR Proteomes; UP000002715; 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 HAMAP; MF_01399; ATP_synth_bprime; 1.
DR InterPro; IPR034679; ATP_synth_b.
DR InterPro; IPR028987; ATP_synth_B-like_membr_sf.
DR InterPro; IPR002146; ATP_synth_b/b'su_bac/chlpt.
DR Pfam; PF00430; ATP-synt_B; 1.
DR SUPFAM; SSF81573; SSF81573; 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..153
FT /note="ATP synthase subunit b'"
FT /id="PRO_0000369026"
FT TRANSMEM 23..40
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01399"
SQ SEQUENCE 153 AA; 17058 MW; D1CB866440A7AB20 CRC64;
MLAFNFFGAT EGGLFDINAT LPLMAIQVVA LTYILNSLFF KPVGNVVEKR EKFVSNNIIE
AKNKLSEVKK LEAELLTQLQ SARTEAQRIV GEAENESDKL YKEALELANN EANASKEKAR
LEIESQTSAA RDQLSKQADD LSELIVNRLI LEK
