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This target displays homology in the following species: Cow: 93%; Dog: 100%; Guinea Pig: 100%; Horse: 93%; Human: 100%; Mouse: 100%; Rabbit: 93%; Rat: 100%; Yeast: 86%; Zebrafish: 93%
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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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, V1 subunit B, isoform 1; Endomembrane proton pump 58 kDa subunit; lysosomal 56/58kDa; V-ATPase B1; V-ATPase subunit B 1; V-type proton ATPase subunit B, kidney isoform; Vacuolar proton pump subunit B 1
Gene Aliases: Atp6b1; Atp6v1b1; AW208839; D630003L15; D630030L16Rik; D630039P21Rik; Vpp-3; Vpp3
UniProt ID: (Mouse) Q91YH6
Entrez Gene ID: (Mouse) 110935
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