Note added in proof: Since this manuscript was submitted, Kallos and Rizok'2 have obtained direct chemical evidence indicating that the pipsyl as well as the tosyl group is covalently bonded to a serine residue of yCHT.We are indebted to Dr. Allen Gold for the gift of phenylmethanesulfonyl fluoride used to prepare PMS--yCHT in the early stages of this work.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.