Srinivasa Rao Adusumalli, Dattatraya Gautam Rawale and Vishal Rai
Org. Biomol. Chem., 2018,16, 9377-9381
DOI:
10.1039/C8OB02897D,
Communication
We show that the chemoselectivity of an electrophile in protein labeling can be promiscuous. An aldehyde enables switching of chemoselectivity of an epoxide and a sulfonate ester along with an enhanced rate of reaction. The chemical technology renders single-site installation of diverse probes on a protein and delivers analytically pure tagged proteins.