A Chemical Model for Redox Regulation of Protein Tyrosine Phosphatase 1B (PTP1B) Activity
作者:Santhosh Sivaramakrishnan、Kripa Keerthi、Kent S. Gates
DOI:10.1021/ja052599e
日期:2005.8.1
of PTP1B. Findings obtained using this model system suggest that the oxidative transformation of PTP1B to its "crosslinked" inactive form can proceed directly via oxidation of the active-site cysteine to a sulfenicacid (RSOH). The remarkably facile nature of this protein cross-link-forming reaction, along with the widespread cellular occurrence of protein sulfenicacids generated via oxidation of cysteine