A search for pyrophosphate mimics for the development of substrates and inhibitors of glycosyltransferases
作者:Ruo Wang、Darryl H. Steensma、Yoshikazu Takaoka、Joanne W. Yun、Tetsuya Kajimoto、Chi-Huey Wong
DOI:10.1016/s0968-0896(97)00005-9
日期:1997.4
The design and synthesis of several beta-1,4-galactosyltransferase inhibitors are reported. Mimics of the pyrophosphate-Mn2+ complex were the focus of the design. Malonic, tartaric, and monosaccharide moieties were used as replacements of the pyrophosphate moiety, and galactose or azasugars with potent galactosidase inhibitory activity were used as the 'donor' component. Compound 6, in which glucose
Galactosylation by use of β-galactosidase: Enzymatic syntheses of disaccharide nucleosides
作者:Wolfgang H. Binder、Hanspeter Kählig、Walther Schmid
DOI:10.1016/0957-4166(95)00216-c
日期:1995.7
synthesis of various galactose containing disaccharide nucleosides has been achieved by utilizing the transgalactosylation potential of ß-galactosidase from Aspergillus oryzae. Thus, using p-nitrophenyl-ß-D-galactoside 1 as galactosyl donor, 2-deoxyuridine 2a, uridine 2b, thymidine 2c and adenosine 2d have proven to be useful acceptors for the enzyme catalyzed disaccharide nucleoside formation. The regiochemistry