Voltage-gated proton (hydrogen) channels play an important role in cellular defense against acidic stress. NOX1 is a homolog of the catalytic subunit of the superoxide-generating NADPH oxidase of phagocytes, gp91phox. Three splice variants of NOX1 have been identified, NOH-1L, NOH-1S and NOH-1Lv. NOH-1S is a voltage-gated proton channel that participates in the regulation of cellular pH and is blocked by zinc. NOH-1L is a pyridine nucleotide-dependent oxidoreductase that generates superoxide and might conduct H (+) ions as part of its electron transport mechanism, whereas NOH-1S does not contain an electron transport chain. NOX1 have the potential to be effective treatments for a range of ischemic diseases.
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Protein Aliases: GP91 phox homolog; mitogenic oxidase (pyridine nucleotide-dependent superoxide-generating); Mitogenic oxidase 1; MOX-1; MOX1; NADH/NADPH mitogenic oxidase subunit P65-MOX; NADPH oxidase 1; NADPH oxidase 1 alpha; NADPH oxidase homolog-1; NOH-1; NOX-1
Gene Aliases: GP91-2; MOX1; NOH-1; NOH1; Nox-1; NOX1; NOX1a; NOX1alpha
Molecular Function: oxidase