Question

There are two nucleotide triphosphates that are required to synthesize glycogen. One of them is ATP. The second is (provide the correct abbreviation).

Answer 1

The process of glycogen synthesis from glucose is known as glycogenesis. Glycogenesis takes place in cytosol. It requires two nucleotide triphosphate ATP and UTP. ATP stands for Adenosine triphosphate and UTP stands for Uridine triphosphate.

Glyconeogenesis mainly involve six step in which the glucose converted into glycogen. The steps are as follows:

1. The first step of glycogenesis is known as glucose phosphorylation in which glucose converted into glucose-6-phosphate by the help of enzyme hexokinase (in muscle) or glucokinase (in liver). It requires one molecule of ATP, which converted into ADP.

2. In step second the conversion of glucose-6-phosphate into glucose-1-phosphate takes place. Phosphoglucomutase enzyme involved in this process.  

3. In third step, the UTP (Uridine triphosphate) attach to glucose-1-phosphate to form active nucleotide (UDP-Glc) uridine diphosphate glucose. In this step the involved enzyme is UDP-Glc Pyrophosphorylase.  

4. In fourth step, the attachment of UDP-Glc (uridine diphosphate glucose) to Glycogen Primer occurs.

5. The fifth step the linear unbranched molecule with alpha-1,4-glycosidic linkages is formed by enzyme glycogen synthase.

6. In six step, the glycogen formation occur.