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Nitric oxide synthases (NOS) are a family of cysteine thiolate-ligated heme-containing monooxygenases that catalyze the NADPH-dependent two-step conversion of L-arginine to NO and L-citrulline.(More)
All cytochrome P450s (CYPs) contain a cysteinate heme iron proximal ligand that plays a crucial role in their mechanism of action. Conversion of the proximal Cys436 to Ser in NH(2)-truncated(More)
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