@article { ISI:000172563500004,
	title = {Dissection of nucleophilic and acid-base catalysis in glycosidases},
	journal = {CURRENT OPINION IN CHEMICAL BIOLOGY},
	volume = {5},
	number = {6},
	year = {2001},
	month = {DEC},
	pages = {643-649},
	abstract = {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, These studies provide an interesting bridge between enzymes and models thereof.},
	issn = {1367-5931},
	doi = {10.1016/S1367-5931(01)00260-5},
	author = {Zechel, DL and Withers, SG}
}
