Article
Dissection of nucleophilic and acid-base catalysis in glycosidases.
Current opinion in chemical biology - 1 Dec 2001
Zechel D L, Withers S G
Abstract excerpt
A startling array of added anions have been observed to function as replacement catalytic nucleophiles in mutant glycosidases, including formate, azide, fluoride and other halides. Likewise, the mechanism of acid-base catalysis is somewhat plastic. The carboxylic acids can be substituted by a sulfenic acid or by ascorbate, and the effective acid strength enhanced by the introduction of strong hydrogen bonds....
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.
