Quantitative regulation of intracellular endothelial nitric-oxide synthase (eNOS) coupling by both tetrahydrobiopterin-eNOS stoichiometry and biopterin redox status: insights from cells with tet-regulated GTP cyclohydrolase I expression.

Tetrahydrobiopterin (BH4) is a critical determinant of endothelial nitric-oxide synthase (eNOS) activity. In the absence of BH4, eNOS becomes "uncoupled" and generates superoxide rather than NO. However, the stoichiometry of intracellular BH4/eNOS interactions is not well defined, and it i...

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Autors principals: Crabtree, M, Tatham, A, Al-Wakeel, Y, Warrick, N, Hale, AB, Cai, S, Channon, K, Alp, N
Format: Journal article
Idioma:English
Publicat: 2009