ID   ATPB_OSMCI              Reviewed;         220 AA.
AC   O03077;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1997, sequence version 1.
DT   29-SEP-2021, entry version 95.
DE   RecName: Full=ATP synthase subunit beta, chloroplastic;
DE            EC=7.1.2.2;
DE   AltName: Full=ATP synthase F1 sector subunit beta;
DE   AltName: Full=F-ATPase subunit beta;
DE   Flags: Fragment;
GN   Name=atpB;
OS   Osmundastrum cinnamomeum (Cinnamon fern) (Osmunda cinnamomea).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Polypodiopsida; Polypodiidae; Osmundales; Osmundaceae; Osmundastrum.
OX   NCBI_TaxID=3284;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Wolf P.G.;
RT   "Evaluation of atpB nucleotide sequences for phylogenetic studies of ferns
RT   and other pteridophytes.";
RL   Am. J. Bot. 84:1429-1440(1997).
CC   -!- FUNCTION: Produces ATP from ADP in the presence of a proton gradient
CC       across the membrane. The catalytic sites are hosted primarily by the
CC       beta subunits (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + 4 H(+)(in) + H2O = ADP + 5 H(+)(out) + phosphate;
CC         Xref=Rhea:RHEA:57720, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=7.1.2.2;
CC   -!- SUBUNIT: F-type ATPases have 2 components, CF(1) - the catalytic core
CC       - and CF(0) - the membrane proton channel. CF(1) has five subunits:
CC       alpha(3), beta(3), gamma(1), delta(1), epsilon(1). CF(0) has four main
CC       subunits: a(1), b(1), b'(1) and c(9-12) (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000305}.
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DR   EMBL; U93827; AAB51735.1; -; Genomic_DNA.
DR   PRIDE; O03077; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045261; C:proton-transporting ATP synthase complex, catalytic core F(1); IEA:UniProtKB-KW.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-EC.
DR   GO; GO:0046961; F:proton-transporting ATPase activity, rotational mechanism; IEA:UniProtKB-EC.
DR   Gene3D; 1.10.1140.10; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   InterPro; IPR000194; ATPase_F1/V1/A1_a/bsu_nucl-bd.
DR   InterPro; IPR024034; ATPase_F1/V1_b/a_C.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   Pfam; PF00006; ATP-synt_ab; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; ATP-binding; CF(1); Chloroplast; Hydrogen ion transport;
KW   Ion transport; Membrane; Nucleotide-binding; Plastid; Thylakoid;
KW   Translocase; Transport.
FT   CHAIN           <1..>220
FT                   /note="ATP synthase subunit beta, chloroplastic"
FT                   /id="PRO_0000144538"
FT   NON_TER         1
FT   NON_TER         220
SQ   SEQUENCE   220 AA;  24142 MW;  782029BE469C6E7F CRC64;
     EXFRDVNKQD VLLFIDNILR SVQAGSEVSA LLGRMPSAVG YQPTLSTEMG SLQERITSTK
     EGSITSIQAV YVPADDSTDP APATTFAHPD ATTVLPRGLA AKGIYPAVDP LDPTPTMLQP
     WIVGEEHYET AQGVKQTLQR YKEPQDIIAI LGLDELSEED RLTVARARKI ERFLSQPFFV
     AEVFTGSPGK YVSPIETIKG FQMILSGELD SLPEQAFYLV