Interdepartmental Program in Medicinal Chemistry, College of Pharmacy and Department of Biological Chemistry, School of Medicine University of Michigan, Ann Arbor, Michigan 48109- 1065. Received August 26, 1991 p-Methyl-L-arginine has recently been shown to inactivate the inducible murine macrophage nitric oxide ('NO) synthase (Olken, NM; Rusche, KM; Richards, MK; Marletta, MA Biochem. Biophys. Res. Commun. 1991, 177,828-833). e-Allyl ...