What is a glycosyltransferase? Choose all that apply Group of answer choices Catalyzes the formation of a bond between a sugar and an amino acid An enzyme that cleaves a glycosidic bond An enzyme that catalyzes the formation of a glycosidic bond An enzyme that transfers nucleotide-sugars from the cytoplasm

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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6. What is a glycosyltransferase? Choose all that apply

Group of answer choices
Catalyzes the formation of a bond between a sugar and an amino acid
An enzyme that cleaves a glycosidic bond
An enzyme that catalyzes the formation of a glycosidic bond
An enzyme that transfers nucleotide-sugars from the cytoplasm
 
7. 

Which statement(s) is/are true about inverting and retaining glycosyltransferases

a. Inverting glycosyltransferase catalyzes the epimerization of a sugar
b. Inverting glycosyltransferase alters the anomeric configuration of the glycosyl donor
c. Retaining glycosyltransferase never preserves the anomeric configuration of the glycosyl donor
d. Inverting glycosyltransferase switch the order of acceptor and donor.

e. An SN1 reaction mechanism results in exclusive retention of stereochemistry of the anomeric carbon

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