ID   ATPB_PYLLI              Reviewed;         481 AA.
AC   P26532;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   03-AUG-2022, entry version 123.
DE   RecName: Full=ATP synthase subunit beta, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01347};
DE            EC=7.1.2.2 {ECO:0000255|HAMAP-Rule:MF_01347};
DE   AltName: Full=ATP synthase F1 sector subunit beta {ECO:0000255|HAMAP-Rule:MF_01347};
DE   AltName: Full=F-ATPase subunit beta {ECO:0000255|HAMAP-Rule:MF_01347};
GN   Name=atpB {ECO:0000255|HAMAP-Rule:MF_01347};
OS   Pylaiella littoralis (Seaweed) (Conferva littoralis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Sar; Stramenopiles; Ochrophyta; PX clade; Phaeophyceae;
OC   Ectocarpales; Acinetosporaceae; Pylaiella.
OX   NCBI_TaxID=2885;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1532750; DOI=10.1007/bf00020028;
RA   Jouannic S., Kerbourc'H C., Kloareg B., Loiseaux-De Goer S.;
RT   "Nucleotide sequences of the atpB and the atpE genes of the brown alga
RT   Pylaiella littoralis (L.) Kjellm.";
RL   Plant Mol. Biol. 18:819-822(1992).
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. {ECO:0000255|HAMAP-Rule:MF_01347}.
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         Evidence={ECO:0000255|HAMAP-Rule:MF_01347};
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). {ECO:0000255|HAMAP-
CC       Rule:MF_01347}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01347}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01347}.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000255|HAMAP-Rule:MF_01347}.
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DR   EMBL; X60329; CAA42899.1; -; Genomic_DNA.
DR   PIR; S20848; PWPFBL.
DR   AlphaFoldDB; P26532; -.
DR   SMR; P26532; -.
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-UniRule.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
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   HAMAP; MF_01347; ATP_synth_beta_bact; 1.
DR   InterPro; IPR003593; AAA+_ATPase.
DR   InterPro; IPR005722; ATP_synth_F1_bsu.
DR   InterPro; IPR020003; ATPase_a/bsu_AS.
DR   InterPro; IPR004100; ATPase_F1/V1/A1_a/bsu_N.
DR   InterPro; IPR036121; ATPase_F1/V1/A1_a/bsu_N_sf.
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   Pfam; PF02874; ATP-synt_ab_N; 1.
DR   SMART; SM00382; AAA; 1.
DR   SUPFAM; SSF50615; SSF50615; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR01039; atpD; 1.
DR   PROSITE; PS00152; ATPASE_ALPHA_BETA; 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..481
FT                   /note="ATP synthase subunit beta, chloroplastic"
FT                   /id="PRO_0000144547"
FT   BINDING         161..168
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01347"
SQ   SEQUENCE   481 AA;  52026 MW;  9A270BAC2327416F CRC64;
     MTKKKTEKEK GINNGYITQV IGPVIDAVFS SGILPKIYNA LEVQSKEGPI ICEVQQLLGD
     NRVRAIAMSA TDGLQRGVTV IDTQAPIAVP VGKATLGRIF NVLGQPVDNL SDSVGEDTLP
     IHRSAPAFTD LETKPAIFET GIKVVDLLAP YRRGGKIGLF GGAGVGKTVL IMELINNIAK
     AHGGVSVFGG VGERTREGND LYMEMKESGV INETNLLESK VALVYGQMNE PPGARMRVGL
     TALTMAEYFR DINKQDVLLF IDNIFRFVQA GSEVSALLGR MPSAVGYQPT LGTEMGALQE
     RITSTTQGSI TSIQAVYVPA DDLTDPAPAT TFAHLDATTV LSRGLAAKGI YPAVDPLDST
     STMLQPLIVG DEHYKTAQLV KETLQRYKEL QDIIAILGID ELSEEDRLVV DRARKIERFL
     SQPFFVAEVF TGSPGKYVDL ENTIKGFNMI LGGELDDLPE QAFYLVGDIN EAISKAKTFK
     N