منابع مشابه
The NADPH oxidase Nox3 constitutively produces superoxide in a p22phox-dependent manner: its regulation by oxidase organizers and activators.
Nox3, a member of the superoxide-producing NADPH oxidase (Nox) family, participates in otoconia formation in mouse inner ears, which is required for perception of balance and gravity. The activity of other Nox enzymes such as gp91(phox)/Nox2 and Nox1 is known to absolutely require both an organizer protein (p47(phox) or Noxo1) andanactivatorprotein (p67(phox) or Noxa1); for the p47(phox)-depend...
متن کاملExercise Training Attenuates Upregulation of p47 and p67 in Hearts of Diabetic Rats
Exercise training (ExT) is currently being used as a nonpharmacological strategy to improve cardiac function in diabetic patients. However, the molecular mechanism(s) underlying its beneficial effects remains poorly understood. Oxidative stress is known to play a key role in the pathogenesis of diabetic cardiomyopathy and one of the enzyme systems that produce reactive oxygen species is NADH/NA...
متن کاملInvolvement of Rac1 in activation of multicomponent Nox1- and Nox3-based NADPH oxidases.
Several Nox family NADPH oxidases function as multicomponent enzyme systems. We explored determinants of assembly of the multicomponent oxidases Nox1 and Nox3 and examined the involvement of Rac1 in their regulation. Both enzymes are supported by p47phox and p67phox or homologous regulators called Noxo1 and Noxa1, although Nox3 is less dependent on these cofactors for activity. Plasma membrane ...
متن کامل[Two breakthroughs in CGD studies].
Studies in Chronic Granulomatous Disease showed two breakthroughs during this past decade. First, the discovery of 7 Nox/Duox family proteins, Noxo1 and Noxa1 (homologues of gp91(phox), p47(phox) and p67(phox)) may clarify novel physiological mechanisms for superoxide regulation in various organs, such as the regulation of blood pressure, mucosal defense system in respiratory/digestive tract an...
متن کاملRegulation of the phagocyte NADPH oxidase activity: phosphorylation of gp91/NOX2 by protein kinase C enhances its diaphorase activity and binding to Rac2, p67, and p47
Neutrophils generate microbicidal oxidants through activation of a multicomponent enzyme called NADPH oxidase. During activation, the cytosolic NADPH oxidase components (p47, p67, p40, and Rac2) translocate to the membranes, where they associate with flavocytochrome b558, which is composed of gp91/NOX2 and p22, to form the active system. During neutrophil stimulation, p47, p67, p40, and p22 are...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2004
ISSN: 0021-9258
DOI: 10.1074/jbc.m400660200