Figure 1 - Nitrite is reduced to NO along the physiological oxygen and pH gradient to form NO, S-nitrosothiols, N-nitrosamines, iron-nitrosyl complexes and possibly nitrated lipids.
From the following article
Nitrite as an intrinsic signaling molecule
Mark T Gladwin
Nature Chemical Biology 1, 245 - 246 (2005)
doi:10.1038/nchembio1005-245
Nitrite modulates various cellular and functional pathways by both NO-dependent and NO-independent signaling.
