Analysis of protein S-nitrosylation
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Updated: Jun 3, 2026

Nitropeptide Profiling and Identification Illustrated by Angiotensin II
Published on: June 16, 2019
Christopher M Schonhoff1, Moran Benhar2
1Tufts Cummings School of Veterinary Medicine, North Grafton, Massachusetts.
Abstract:
S-Nitrosylation, the redox-based modification of cysteine thiol side chains by nitric oxide, is a dynamic and reversible post-translational modification of proteins that subserves many important cellular functions. Analysis of protein S-nitrosylation is often challenging due to methodological limitations and the effects of various chemical and physical parameters. Despite these technical challenges, a growing number of useful methods are now available to analyze protein S-nitrosylation. In this unit, several important methods to measure protein S-nitrosylation and denitrosylation are discussed and evaluated. Recommendations are given regarding the potential and the applicability of the methods discussed.

