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J Lab Clin Med. 1996 Nov;128(5):461-76.

Interactions between the components of the human NADPH oxidase: intrigues in the phox family.

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1
Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, University of Amsterdam.

Abstract

The human NADPH oxidase is a very intriguing enzyme; although its catalytic unit is retained within cytochrome b558, various additional proteins are required for activity of the NADPH oxidase. In the past few years substantial progress has been made to elucidate the protein-protein interactions and the activation events involved. The following facts have become evident: (1) activation of rac and subsequent interaction with p67-phox is crucial for the interaction of p67-phox with cytochrome b558, and probably with gp91-phox; (2) p47-phox interacts with p22-phox, and phosphorylation of 379Ser of p47-phox is obligatory for this event; (3) p47-phox and p67-phox regulate each other's translocation in a positive sense (see also reference 71). To put it differently: it is vital to gain insight in the intrigues within the phox family and associated characters to fully understand NADPH oxidase activation.

PMID:
8900289
[Indexed for MEDLINE]

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