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ATPase, H+ transporting, lysosomal 34kDa, V1 subunit D
This gene encodes a component of vacuolar ATPase (V-ATPase), a multisubunit enzyme that mediates acidification of eukaryotic intracellular organelles. V-ATPase dependent organelle acidification is necessary for such intracellular processes as protein sorting, zymogen activation, receptor-mediated endocytosis, and synaptic vesicle proton gradient generation. V-ATPase is composed of a cytosolic V1 domain and a transmembrane V0 domain. The V1 domain consists of three A and three B subunits, two G subunits plus the C, D, E, F, and H subunits. The V1 domain contains the ATP catalytic site. The V0 domain consists of five different subunits: a, c, c', c", and d. Additional isoforms of many of the V1 and V0 subunit proteins are encoded by multiple genes or alternatively spliced transcript variants. This gene encodes the V1 domain D subunit protein. [provided by RefSeq, Jul 2008] (from
Li et al., Vancouver, Canada. In Int J Oncol, 2008
Further analysis of this amplicon indicates that it encompassed genes involved in DNA repair (RAD51L, MLH3), reactive oxygen species (GPX2, CSTZ1, NGB, RDH11, ZADH1), and transportome (ABCD4, ATP6V1D, SLC10A6).