Activation State-Dependent Interaction between Gαi and p67 phox
نویسندگان
چکیده
منابع مشابه
Activation State - Dependent Interaction between G i and p 67 phox
The phagocyte NADPH oxidase consists of multiple protein subunits that interact with each other to form a functional superoxide-generating complex. Although the essential components for superoxide production have been well characterized, other proteins potentially involved in the regulation of NADPH oxidase activation remain to be identified. We report here that the G i subunit of heterotrimeri...
متن کاملDisturbed interaction of p21-rac with mutated p67-phox causes chronic granulomatous disease
Chronic granulomatous disease (CGD) is characterized by the failure of phagocytic leukocytes to generate superoxide, needed for the intracellular killing of microorganisms. This is caused by mutations in any one of the four subunits of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. In a rare, autosomal recessive form of CGD, a 67-kD cytosolic component of this enzyme (p67-phox...
متن کاملp67-phox enhances the binding of p47-phox to the human neutrophil respiratory burst oxidase complex.
The neutrophil respiratory burst oxidase consists of both the plasma membrane-associated flavocytochrome b558 and cytosolic regulatory proteins including p47-phox, p67-phox, and a small GTP-binding protein (Rac1 and/or Rac2). Oxidase activation is thought to result from the assembly of the cytosolic components on the cytochrome. A model has been proposed in which p47-phox binds directly to the ...
متن کاملCloning and expression of bovine p47-phox and p67-phox: comparison with the human and murine homologs.
Neutrophils play an essential role in bovine cellular host defense, and compromised leukocyte function has been linked to the development of respiratory and mucosal infections. During the host defense process, neutrophils migrate into infected tissues where they become activated, resulting in the assembly of neutrophil membrane and cytosolic proteins to form a superoxide anion-generating comple...
متن کاملNeutrophils from patients after burn injury express a deficiency of the oxidase components p47-phox and p67-phox.
Infection is a major cause of morbidity and mortality in patients after thermal injury. This predisposition to infections is related, in part, to abnormal polymorphonuclear leukocyte (PMN) function and a diminished respiratory burst. To evaluate the biochemical basis for the defective respiratory burst after major burns, the status of the oxidase enzyme system and its components was investigate...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 2006
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.01979-05