Discovery of a cell-active SuTEx ligand of prostaglandin reductase 2

Autor: Adam H. Libby, Ku-Lung Hsu, Emmanuel K. Toroitich, Anthony M. Ciancone, Skylar M Brodowski, Heung Sik Hahm
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Chembiochem
Popis: Sulfonyl-triazoles have emerged as a new reactive group for covalent modification of tyrosine sites on proteins through sulfur-triazole exchange (SuTEx) chemistry. The extent to which this sulfur electrophile can be tuned for developing ligands with cellular activity remains largely underexplored. Here, we performed fragment-based ligand discovery in live cells to identify SuTEx compounds capable of liganding tyrosine sites on diverse protein targets. We verified our quantitative chemical proteomic findings by demonstrating concentration-dependent activity of SuTEx ligands, but not inactive counterparts, against recombinant protein targets directly in live cells. Our structure-activity relationship studies identified the SuTEx ligand HHS-0701 as a cell-active inhibitor capable of blocking prostaglandin reductase 2 (PTGR2) biochemical activity.
Databáze: OpenAIRE