Briefly (one sentence) describe the roles of the following enzymes in glycogen m

Question

Briefly (one sentence) describe the roles of the following enzymes in glycogen metabolism. a. Glycogen synthase b. Glycogen phosphorylase c. Glyogenin d. Branching enzyme e. Debranching enzyme f. Phosphoglucomutase Briefly (one sentence) describe the roles of the following enzymes in glycogen metabolism. a. Glycogen synthase b. Glycogen phosphorylase c. Glyogenin d. Branching enzyme e. Debranching enzyme f. Phosphoglucomutase Briefly (one sentence) describe the roles of the following enzymes in glycogen metabolism. a. Glycogen synthase b. Glycogen phosphorylase c. Glyogenin d. Branching enzyme e. Debranching enzyme f. Phosphoglucomutase

Explanation / Answer

a.Glycogen synthase (UDP-glucose-glycogen glucosyltransferase) is a key enzyme in glycogenesis, the conversion of glucose into glycogen.

b.Glycogen phosphorylase catalyzes the rate-limiting step in glycogenolysis in animals by releasing glucose-1-phosphate from the terminal alpha-1,4-glycosidic bond present in glycogen.

c.Glycogenin is an enzyme involved in converting glucose to glycogen. It acts as a primer, by polymerizing the first few glucose molecules, after which other enzymes take over. It is a homodimer and is classified as a glycosyltransferase.

d.Glycogen branching enzyme is an enzyme that adds branches to the growing glycogen molecule during the synthesis of glycogen, a storage form of glucose.

e.A debranching enzyme is a molecule that helps facilitate the breakdown of glycogen, which serves as a store of glucose in the body, through glucosyltransferase .

f.Phosphoglucomutase is an enzyme that transfers a phosphate group on an -D-glucose monomer from the 1' to the 6' position in the forward direction or the 6' to the 1' position in the reverse direction.

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