ID VATB2_PONAB Reviewed; 511 AA.
AC Q5R5V5;
DT 24-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT 21-DEC-2004, sequence version 1.
DT 24-JAN-2024, entry version 99.
DE RecName: Full=V-type proton ATPase subunit B, brain isoform;
DE Short=V-ATPase subunit B 2;
DE AltName: Full=Vacuolar proton pump subunit B 2;
GN Name=ATP6V1B2;
OS Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Pongo.
OX NCBI_TaxID=9601;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Brain cortex;
RG The German cDNA consortium;
RL Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Non-catalytic subunit of the V1 complex of vacuolar(H+)-
CC ATPase (V-ATPase), a multisubunit enzyme composed of a peripheral
CC complex (V1) that hydrolyzes ATP and a membrane integral complex (V0)
CC that translocates protons (By similarity). V-ATPase is responsible for
CC acidifying and maintaining the pH of intracellular compartments and in
CC some cell types, is targeted to the plasma membrane, where it is
CC responsible for acidifying the extracellular environment (By
CC similarity). In renal intercalated cells, can partially compensate the
CC lack of ATP6V1B1 and mediate secretion of protons (H+) into the urine
CC under base-line conditions but not in conditions of acid load (By
CC similarity). {ECO:0000250|UniProtKB:P21281,
CC ECO:0000250|UniProtKB:P62814}.
CC -!- SUBUNIT: V-ATPase is a heteromultimeric enzyme made up of two
CC complexes: the ATP-hydrolytic V1 complex and the proton translocation
CC V0 complex (By similarity). The V1 complex consists of three catalytic
CC AB heterodimers that form a heterohexamer, three peripheral stalks each
CC consisting of EG heterodimers, one central rotor including subunits D
CC and F, and the regulatory subunits C and H (By similarity). The proton
CC translocation complex V0 consists of the proton transport subunit a, a
CC ring of proteolipid subunits c9c'', rotary subunit d, subunits e and f,
CC and the accessory subunits ATP6AP1/Ac45 and ATP6AP2/PRR (By
CC similarity). {ECO:0000250|UniProtKB:P21281}.
CC -!- SUBCELLULAR LOCATION: Apical cell membrane
CC {ECO:0000250|UniProtKB:P21281}. Melanosome
CC {ECO:0000250|UniProtKB:P21281}. Cytoplasm
CC {ECO:0000250|UniProtKB:P62814}. Cytoplasmic vesicle, secretory vesicle,
CC synaptic vesicle membrane {ECO:0000250|UniProtKB:P62815}; Peripheral
CC membrane protein {ECO:0000305}. Cytoplasmic vesicle, clathrin-coated
CC vesicle membrane {ECO:0000250|UniProtKB:P62815}; Peripheral membrane
CC protein {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC {ECO:0000305}.
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DR EMBL; CR860747; CAH92861.1; -; mRNA.
DR RefSeq; NP_001126673.1; NM_001133201.1.
DR AlphaFoldDB; Q5R5V5; -.
DR SMR; Q5R5V5; -.
DR STRING; 9601.ENSPPYP00000013735; -.
DR Ensembl; ENSPPYT00000021448.3; ENSPPYP00000020619.3; ENSPPYG00000018403.3.
DR GeneID; 100173673; -.
DR KEGG; pon:100173673; -.
DR CTD; 526; -.
DR eggNOG; KOG1351; Eukaryota.
DR GeneTree; ENSGT00940000155068; -.
DR InParanoid; Q5R5V5; -.
DR OMA; GFKIKPR; -.
DR OrthoDB; 5473721at2759; -.
DR Proteomes; UP000001595; Chromosome 8.
DR GO; GO:0016324; C:apical plasma membrane; ISS:UniProtKB.
DR GO; GO:0030665; C:clathrin-coated vesicle membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005829; C:cytosol; ISS:UniProtKB.
DR GO; GO:0042470; C:melanosome; IEA:UniProtKB-SubCell.
DR GO; GO:0005902; C:microvillus; IEA:Ensembl.
DR GO; GO:0005886; C:plasma membrane; ISS:UniProtKB.
DR GO; GO:0001726; C:ruffle; IEA:Ensembl.
DR GO; GO:0030672; C:synaptic vesicle membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0000221; C:vacuolar proton-transporting V-type ATPase, V1 domain; ISS:UniProtKB.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0046961; F:proton-transporting ATPase activity, rotational mechanism; IEA:InterPro.
DR GO; GO:0046034; P:ATP metabolic process; IEA:InterPro.
DR GO; GO:0097401; P:synaptic vesicle lumen acidification; IEA:Ensembl.
DR CDD; cd18112; ATP-synt_V_A-type_beta_C; 1.
DR CDD; cd18118; ATP-synt_V_A-type_beta_N; 1.
DR CDD; cd01135; V_A-ATPase_B; 1.
DR Gene3D; 3.40.50.12240; -; 1.
DR HAMAP; MF_00310; ATP_synth_B_arch; 1.
DR InterPro; IPR020003; ATPase_a/bsu_AS.
DR InterPro; IPR004100; ATPase_F1/V1/A1_a/bsu_N.
DR InterPro; IPR000194; ATPase_F1/V1/A1_a/bsu_nucl-bd.
DR InterPro; IPR005723; ATPase_V1-cplx_bsu.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR022879; V-ATPase_su_B/beta.
DR NCBIfam; TIGR01040; V-ATPase_V1_B; 1.
DR PANTHER; PTHR43389; V-TYPE PROTON ATPASE SUBUNIT B; 1.
DR PANTHER; PTHR43389:SF5; V-TYPE PROTON ATPASE SUBUNIT B, BRAIN ISOFORM; 1.
DR Pfam; PF00006; ATP-synt_ab; 1.
DR Pfam; PF02874; ATP-synt_ab_N; 1.
DR PIRSF; PIRSF039114; V-ATPsynth_beta/V-ATPase_B; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS00152; ATPASE_ALPHA_BETA; 1.
PE 2: Evidence at transcript level;
KW ATP-binding; Cell membrane; Cytoplasm; Cytoplasmic vesicle;
KW Hydrogen ion transport; Ion transport; Membrane; Nucleotide-binding;
KW Reference proteome; Synapse; Transport.
FT CHAIN 1..511
FT /note="V-type proton ATPase subunit B, brain isoform"
FT /id="PRO_0000144628"
FT BINDING 400
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P21281"
SQ SEQUENCE 511 AA; 56531 MW; A10F94AAB27F4936 CRC64;
MALRAMRGIV NGAAPELPVP TGGPTVGARE QALAVSRNYL SQPRLTYKTV SGVNGPLVIL
DHVKFPRYAE IVHLTLPDGT KRSGQVLEVS GSKAVVQVFE GTSGIDAKKT SCEFTGDILR
TPVSEDMLGR VFNGSGKPID RGPVVLAEDF LDIMGQPINP QCRIYPEEMI QTGISAIDGM
NSIARGQKIP IFSAAGLPHN EIAAQICRQA GLVKKSKDVV DYSEENFAIV FAAMGVNMET
ARFFKSDFEE NGSMDNVCLF LNLANDPTIE RIITPRLALT TAEFLAYQCE KHVLVILTDM
SSYAEALREV SAAREEVPGR RGFPGYMYTD LATIYERAGR VEGRNGSITQ IPILTMPNDD
ITHPIPDLTG YITEGQIYVD RQLHNRQIYP PINVLPSLSR LMKSAIGEGM TRKDHADVSN
QLYACYAIGK DVQAMKAVVG EEALTSDDLL YLEFLQKFER NFIAQGPYEN RTVFETLDIG
WQLLRIFPKE MLKRIPQSTL SEFYPRDSAK H
//
