NUTRITION
CARBOHYDRATES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Glycogenase
|
|
|
Glucose
|
|
|
Glycogenin
|
|
|
Galactase
|
Detailed explanation-1: -Glycogenin (GYG1 or GYG2) (EC 2.4. 1.1. 86) functions as the primer for glycogen synthesis and is a self-glycosylating enzyme that uses uridine diphosphoglucose to synthesize a short glucose polymer attached to a surface tyrosine residue.
Detailed explanation-2: -Glycogenin and Formation of Glycogen. Glycogenin is an enzyme, classified as a glycosyltransferase. It is a homodimer composed of two 37 kDa subunits. It has the initial role in the formation of glycogen from UDP-glucose in muscle and liver.
Detailed explanation-3: -Glycogenin undergoes self-glucosylation to generate an oligosaccharide primer, which, when long enough, supports the action of glycogen synthase to elongate the polysaccharide chain, leading ultimately to the formation of glycogen.