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V-type proton ATPase subunit E 1 is an enzyme that in humans is encoded by the ATP6V1E1gene.[1][2][3]
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, three B, and two G subunits, as well as a C, D, E, F, and H subunit. The V1 domain contains the ATP catalytic site. This gene encodes alternate transcriptional splice variants, encoding different V1 domain E subunit isoforms. Pseudogenes for this gene have been found in the genome.[3]
References
↑Baud V, Mears AJ, Lamour V, Scamps C, Duncan AM, McDermid HE, Lipinski M (Jul 1994). "The E subunit of vacuolar H(+)-ATPase localizes close to the centromere on human chromosome 22". Hum Mol Genet. 3 (2): 335–9. doi:10.1093/hmg/3.2.335. PMID8004105.
↑van Hille B, Vanek M, Richener H, Green JR, Bilbe G (Jan 1994). "Cloning and tissue distribution of subunits C, D, and E of the human vacuolar H(+)-ATPase". Biochem Biophys Res Commun. 197 (1): 15–21. doi:10.1006/bbrc.1993.2434. PMID8250920.
Stevens TH, Forgac M (1998). "Structure, function and regulation of the vacuolar (H+)-ATPase". Annu. Rev. Cell Dev. Biol. 13 (1): 779–808. doi:10.1146/annurev.cellbio.13.1.779. PMID9442887.
Nelson N, Harvey WR (1999). "Vacuolar and plasma membrane proton-adenosinetriphosphatases". Physiol. Rev. 79 (2): 361–85. PMID10221984.
Nishi T, Forgac M (2002). "The vacuolar (H+)-ATPases--nature's most versatile proton pumps". Nat. Rev. Mol. Cell Biol. 3 (2): 94–103. doi:10.1038/nrm729. PMID11836511.
Kawasaki-Nishi S, Nishi T, Forgac M (2003). "Proton translocation driven by ATP hydrolysis in V-ATPases". FEBS Lett. 545 (1): 76–85. doi:10.1016/S0014-5793(03)00396-X. PMID12788495.
Hemken P, Guo XL, Wang ZQ, et al. (1992). "Immunologic evidence that vacuolar H+ ATPases with heterogeneous forms of Mr = 31,000 subunit have different membrane distributions in mammalian kidney". J. Biol. Chem. 267 (14): 9948–57. PMID1533641.
Breton S, Wiederhold T, Marshansky V, et al. (2000). "The B1 subunit of the H+ATPase is a PDZ domain-binding protein. Colocalization with NHE-RF in renal B-intercalated cells". J. Biol. Chem. 275 (24): 18219–24. doi:10.1074/jbc.M909857199. PMID10748165.
