ID   ATPB_LACCA              Reviewed;         470 AA.
AC   Q03234;
DT   01-OCT-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1993, sequence version 1.
DT   03-AUG-2022, entry version 114.
DE   RecName: Full=ATP synthase subunit beta {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=atpD {ECO:0000255|HAMAP-Rule:MF_01347};
OS   Lactobacillus casei.
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lacticaseibacillus.
OX   NCBI_TaxID=1582;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Klugbauer N., Ludwig W., Bauerlein E., Schleifer K.H.;
RT   "Subunit beta of adenosine triphosphate synthase of Pectinatus frisingensis
RT   and Lactobacillus casei.";
RL   Syst. Appl. Microbiol. 15:323-330(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 three main
CC       subunits: a(1), b(2) and c(9-12). The alpha and beta chains form an
CC       alternating ring which encloses part of the gamma chain. CF(1) is
CC       attached to CF(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       {ECO:0000255|HAMAP-Rule:MF_01347}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01347};
CC       Peripheral membrane protein {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; X64542; CAA45840.1; -; Genomic_DNA.
DR   PIR; S30597; S30597.
DR   AlphaFoldDB; Q03234; -.
DR   SMR; Q03234; -.
DR   STRING; 1582.AAW28_03515; -.
DR   eggNOG; COG0055; Bacteria.
DR   GO; GO:0005886; C:plasma 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; Cell membrane; CF(1); Hydrogen ion transport;
KW   Ion transport; Membrane; Nucleotide-binding; Translocase; Transport.
FT   CHAIN           1..470
FT                   /note="ATP synthase subunit beta"
FT                   /id="PRO_0000144447"
FT   BINDING         155..162
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01347"
SQ   SEQUENCE   470 AA;  51457 MW;  2258AF44C6DE13FB CRC64;
     MPNSTGKIAQ VIGPVVDVAF PINDNLPEIN NALTITRKDG SQLVLEVALE LGDGVMRTIA
     MDSTDGLQRG MAVEDTGGPI SVPVGKDTLG RVFNVLGDPI DDGEALDLNH RRDSIHRDAP
     KFEDLNTSSE ILETGIKVID LLEPYLRGGK VGLFGGAGVG KTVLIQELIH NIAEEHGGIS
     VFTGVGERTR EGNDLYFEMK ESGVMENTAM VFGQMNEPPG ARMRVALTGL TIAEYFRDVE
     GQDVLLFIDN IFRFTQAGSE VSALLGRIPS AVGYQPTLAT EMGQLQERIT STKKGSVTSI
     QAIYVPADDY TDPAPRTTFA HLDATTNLER RLTEQGIYPA VDPLESSSSA LTPEIVGEEH
     YKVATEVQQV LQRYRELQDI ISILGMDELS DEEKVIVARA RRVQFFLSQN FNVAERFTGQ
     PGSYVPVEET VKGFKQILEG KYDDYPEDAF RSVGRIEEVV EKAKKMGFAP