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Immunogen sequence: MAMEIDSRP GGLPGSSCNL GAAREHMQAV TRNYITHPRV TYRTVCSVNG PLVVLDRVKF AQYAEIVHFT LPDGTQRSGQ VLEVAGTKAI VQVFEGTSGI DARKTTCEFT GDILRTPVSE DMLGRVFNGS GKPIDKGPVV MAEDFLDING QPINPHSRIY PEEMIQTGIS PIDVMNSIAR GQKIPIFSAA GLPHNEIAAQ ICRQAGLVKK SKAVLDYHDD NFAIVFAAMG VNMETARFFK SDFEQNGTMG NVCLFLNLAN DPTIERIITP RLALTTAEFL AYQCEKHVLV ILTDMSSYAE ALREVSAARE EVPGRRGFPG YMYTDLAT (1-327 aa encoded by BC063411)
Vacuolar-type H+-ATPase (V-ATPase) is a multisubunit enzyme responsible for acidification of eukaryotic intracellular organelles. V-ATPases pump protons against an electrochemical gradient, while F-ATPases reverse the process, thereby synthesizing ATP. A peripheral V1 domain, which is responsible for ATP hydrolysis, and a integral V0 domain, which is responsible for proton translocation, compose V-ATPase. Nine subunits (A-H) make up the V1 domain and five subunits (a, d, c, c' and c") make up the V0 domain. Like F-ATPase, V-ATPase most likely operates through a rotary mechanism. The V-ATPase V1 B subunit exists as two isoforms. In the inner ear, the V-ATPase B1 isoform functions in proton secretion and is required to maintain proper endolymph pH and normal auditory function. The gene encoding the human V-ATPase B1 isoform maps to chromosome 2cen-q13. Mutations in this gene cause distal renal tubular acidosis associated with sensorineural deafness. The V-ATPase B2 isoform is expressed in kidney and is the only B isoform expressed in osteoclasts.
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Protein Aliases: ATPase, H+ transporting, lysosomal (vacuolar proton pump), beta 56/58 kDa, isoform 1; ATPase, H+ transporting, lysosomal 56/58kDa, V1 subunit B, isoform 1; ATPase, H+ transporting, lysosomal 56/58kDa, V1 subunit B1; ATPase, H+ transporting, V1 subunit B, isoform 1; Endomembrane proton pump 58 kDa subunit; H(+)-transporting two-sector ATPase, 58kD subunit; H+-ATPase beta 1 subunit; lysosomal 56/58kDa; V-ATPase B1; V-ATPase B1 subunit; V-ATPase subunit B 1; V-type proton ATPase subunit B, kidney isoform; vacuolar proton pump 3; Vacuolar proton pump subunit B 1; vacuolar proton pump, subunit 3
Gene Aliases: ATP6B1; ATP6V1B1; AW208839; D630003L15; D630030L16Rik; D630039P21Rik; RTA1B; VATB; VMA2; Vpp-3; VPP3
UniProt ID: (Human) P15313, (Mouse) Q91YH6
Entrez Gene ID: (Human) 525, (Rat) 312488, (Mouse) 110935
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