Enzymatic properties of α-d-galactosidase from Trichoderma reesei
作者:Andrew N. Savel'ev、Farid M. Ibatyllin、Elena V. Eneyskaya、Anatoly M. Kachurin、Kirill N. Neustroev
DOI:10.1016/s0008-6215(96)00248-0
日期:1996.12
compounds have been obtained. The inhibiting properties of the competitive inhibitors of d -galactose, 1,5-anhydro-d-galactitol, and 2-deoxygalactose have been compared, and reasons for differences in KI values between these compounds have been discussed. It has been shown that α- d -galactosidase exhibits transglycosylating activity; the main product of transglycosylation in the reaction with PNPG is p-nitrophenyl
The reaction of unprotected sugar hydroxylamines and oximes with α-ketoacids leads to the chemoselective formation of glycosyl amides following the decarboxylativecondensation pathway of Bode’s ketoacid hydroxylamine (KAHA) ligation. Sugar oximes with gluco configuration stereoselectively form β-linked products. This method can be used for the convergent synthesis of N-acylated sugars and oligosaccharides