Article ID Journal Published Year Pages File Type
1374199 Bioorganic & Medicinal Chemistry Letters 2009 5 Pages PDF
Abstract

4,4-Difluoro-l-arginine and 4,4-difluoro-NG-hydroxy-l-arginine were synthesized and shown to be substrates for the inducible isoform of nitric oxide synthase (iNOS). Binding of both fluorinated analogues to the NOS active site was also investigated using a spectral binding assay employing a heme domain construct of the inducible NOS isoform (iNOSheme). 4,4-Difluoro-NG-hydroxy-arginine was found to bind at the NOS active site in a unique manner consistent with a model involving ligation of the FeIII heme center by the oxygen atom of the NG-hydroxy moiety.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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