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. 2006 Feb 20;41(1):19–28. doi: 10.1016/j.freeradbiomed.2006.01.037

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Copyright © 2006 Elsevier Inc. All rights reserved.

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Fig. 1 — NO metabolism and function. NOS, nitric oxide synthases; NO•, nitric oxide; NO₂⁻, nitrite; NO₃⁻, nitrate; l-Arg, l-arginine; l-Cit, l-citrulline; HB₄, tetrahydrobiopterin; cGMP, guanosine 3′,5′-cyclic monophosphate; O₂•⁻, superoxide; OONO⁻, peroxynitrite; TyrNO₂, nitrotyrosine.