ID   VATB_METTL              Reviewed;         253 AA.
AC   P20022;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   25-MAY-2022, entry version 75.
DE   RecName: Full=V-type ATP synthase beta chain;
DE   AltName: Full=V-ATPase subunit B;
DE   Flags: Fragment;
GN   Name=atpB;
OS   Methanothermococcus thermolithotrophicus (Methanococcus
OS   thermolithotrophicus).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanococcaceae; Methanothermococcus.
OX   NCBI_TaxID=2186;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2526753; DOI=10.1016/0014-5793(89)81442-5;
RA   Bernasconi P., Rausch T., Gogarten J.P., Taiz L.;
RT   "The H+ ATPase regulatory subunit of Methanococcus thermolithotrophicus:
RT   amplification of an 800 bp fragment by polymerase chain reaction.";
RL   FEBS Lett. 251:132-136(1989).
CC   -!- FUNCTION: Produces ATP from ADP in the presence of a proton gradient
CC       across the membrane. The archaeal beta chain is a regulatory subunit.
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000305}.
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DR   PIR; S05029; S05029.
DR   AlphaFoldDB; P20022; -.
DR   SMR; P20022; -.
DR   GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR   GO; GO:0006754; P:ATP biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0006811; P:ion transport; IEA:UniProtKB-KW.
DR   InterPro; IPR000194; ATPase_F1/V1/A1_a/bsu_nucl-bd.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR022879; V-ATPase_su_B/beta.
DR   PANTHER; PTHR43389; PTHR43389; 1.
DR   Pfam; PF00006; ATP-synt_ab; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; Hydrogen ion transport; Ion transport; Transport.
FT   CHAIN           <1..>253
FT                   /note="V-type ATP synthase beta chain"
FT                   /id="PRO_0000144659"
FT   NON_TER         1
FT   NON_TER         253
SQ   SEQUENCE   253 AA;  27670 MW;  F3EF9582D0851AD1 CRC64;
     NTNETKVRFT GETAKIGVSL EMLGRIFNGA GKPIDGGPEI IPEKKLDING YPLNPVSRNP
     PNAFVQTGIS TIDGTNTLVR GQKLPIFSGS GLPHNTLAAQ IARQAKVRGE GEQFAVVFAA
     MGITNEEANY FMEEFKKPGA LENAVVFINL ANDPAIERII TPRLALTTAE YLAYEKDMHV
     LVVLTDMTNY CEALREIAAA RNEVPGRRGY PGYMYTDLAT LYERAGRVKG RKGTVTQIPI
     LTMPHDDITH PIP