Title : Direct involvement of the small GTPase Rac in activation of the superoxide-producing NADPH oxidase Nox1.

Pub. Date : 2006 Aug 4

PMID : 16762923






4 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 Direct involvement of the small GTPase Rac in activation of the superoxide-producing NADPH oxidase Nox1. Superoxides NADPH oxidase 1 Homo sapiens
2 Activation of the non-phagocytic superoxide-producing NADPH oxidase Nox1, complexed with p22(phox) at the membrane, requires its regulatory soluble proteins Noxo1 and Noxa1. Superoxides NADPH oxidase 1 Homo sapiens
3 Electropermeabilized HeLa cells, ectopically expressing Nox1, Noxo1, and Noxa1, produce superoxide in a GTP-dependent manner, which is abrogated by expression of a mutant Noxa1(R103E), defective in Rac binding. Superoxides NADPH oxidase 1 Homo sapiens
4 Superoxide production in Nox1-expressing HeLa and Caco-2 cells is decreased by depletion or sequestration of Rac; on the other hand, it is enhanced by expression of the constitutively active Rac1(Q61L), but not by that of a mutant Rac1 with the A27K substitution, deficient in binding to Noxa1. Superoxides NADPH oxidase 1 Homo sapiens