Protein phosphorylation mediates signalling and other important cellular processes, but the specific effect of cysteine phosphorylation is unclear. Here, the authors present a chemical strategy to selectively phosphorylate cysteine residues and a mass spectrometry approach to detect and characterize endogenous pCys sites.
- Jordi Bertran-Vicente
- Martin Penkert
- Christian P. R. Hackenberger