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Tetrahydrobiopterin Redox Cycling in Nitric-oxide Synthase: Evidence Supports a Through-Heme Electron Delivery

The NO synthases (NOS) catalyze a two-step oxidation of L-Arginine (Arg) to generate NO. In the first step, O(2) activation involves one electron being provided to the heme by an enzyme-bound 6R-tetrahydro-L-biopterin cofactor (H(4)B), which then forms a H(4)B radical that must be reduced back to H(...

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Publicat a:FEBS J
Autors principals: Ramasamy, Somasundaram, Haque, Mohammad Mahfuzul, Gangoda, Mahinda, Stuehr, Dennis J.
Format: Artigo
Idioma:Inglês
Publicat: 2016
Matèries:
Accés en línia:https://ncbi.nlm.nih.gov/pmc/articles/PMC5387691/
https://ncbi.nlm.nih.gov/pubmed/27760279
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1111/febs.13933
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