Literature DB >> 2059195

NADPH-oxidase activation by protein kinase C-isotypes.

P Sharma1, A T Evans, P J Parker, F J Evans.   

Abstract

The cell free activation of NADPH-Oxidase in membranes of mouse peritoneal macrophages by purified PKC-isotypes was investigated. Unstimulated intrinsic activity of PKC-isotypes showed little dependence on Ca2+ for activation of the oxidase. In the presence of TPA, the activation of the oxidase was greatly enhanced, and alpha-, and gamma-subtypes were strongly Ca2+ dependent in this system. Beta-, delta- and epsilon-subtypes were active both in the presence and absence of free Ca2+ ions. The results suggest that at resting Ca2+ levels certain PKC-isotypes can activate NADPH-oxidase.

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Year:  1991        PMID: 2059195     DOI: 10.1016/0006-291x(91)90642-k

Source DB:  PubMed          Journal:  Biochem Biophys Res Commun        ISSN: 0006-291X            Impact factor:   3.575


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