| vacuolar | Relating to or resembling a vacuole. (05 Mar 2000) |
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| vacuolar ATPase | <enzyme> From eukaryotic endomembrane systems, including vacuoles, lysosomes, golgi apparatus, chromaffin granules and coated vesicles. One of three major classes of ion transport ATPase, characterised by a multi subunit structure and a lack of a phosphorylated intermediate. Found in archaebacteria but not eubacteria, in the intracellular acidic vacuoles and in some proton pumping epithelia (e.g. Intercalated cells of kidney). A complex enzyme encoded by several genes, involved in ion translocation but does not act via phosphorylated enzyme intermediate See: P-type ATPase. Registry number: EC 3.6.1.- Synonym: atpase, v-type, atpase, vacuolar, vacuolar atpase, v-atpase, vacuolar h+-atpase, vacuolar membrane h(+)-atpase, vha55 gene product, vma16 gene product (26 Jun 1999) |
| vacuolar calcium ATPase | <enzyme> Isolated from saccharomyces cerevisiae; genbank u36603 Registry number: EC 3.6.1.- Synonym: h(+)-ca(2+)-atpase, vacuolar (26 Jun 1999) |
| vacuolar degeneration | Formation of nonlipid vacuoles in cytoplasm, most frequently due to accumulation of water by cloudy swelling. (05 Mar 2000) |
| vacuolar nephrosis | Vacuolation of the epithelial cytoplasm of renal convoluted tubules in patients seriously depleted of potassium; vacuoles do not contain fat or glycogen, concentrating ability is impaired, polyuria and polydipsia are common, and pyelonephritis may develop. Synonym: vacuolar nephrosis. (05 Mar 2000) |