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In the diagram of glycogen shown below, circle the substrates for glycogen debranching enzyme. CH2 CH2 CH2

In the diagram of glycogen shown below, circle the substrates for glycogen debranching enzyme. CH2 CH2 CH2

Biochemistry
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
Section: Chapter Questions
Problem 1P
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Please actually circle the substrates in the diagram

### Glycogen Structure and Debranching Enzyme Substrates The diagram displayed above illustrates the branched molecular structure of glycogen. Glycogen is a multi-branched polysaccharide that serves as a form of energy storage in animals and fungi. Each hexagonal shape in the diagram represents a glucose unit linked via glycosidic bonds. These glucose units are primarily connected by α(1→4) bonds, with branch points formed by α(1→6) bonds, where a side chain of glucose branches off from the main chain. Key features to note: - **Linear Chains**: Glucose molecules connected in a straight line represent the α(1→4) glycosidic bonds. - **Branch Points**: Look for the point in the structure where a glucose unit is connected to three other glucose molecules. These α(1→6) linkages are the branch points where the glycogen debranching enzyme acts. In the context of the enzyme function, the glycogen debranching enzyme helps to handle the α(1→6) glycosidic bonds at branch points. For educational purposes, students are instructed to identify and circle these specific substrates as part of their learning exercise. By identifying these substrates, students can better understand the role of the debranching enzyme in glycogenolysis, the metabolic pathway of breaking down glycogen into glucose.
Transcribed Image Text:### Glycogen Structure and Debranching Enzyme Substrates The diagram displayed above illustrates the branched molecular structure of glycogen. Glycogen is a multi-branched polysaccharide that serves as a form of energy storage in animals and fungi. Each hexagonal shape in the diagram represents a glucose unit linked via glycosidic bonds. These glucose units are primarily connected by α(1→4) bonds, with branch points formed by α(1→6) bonds, where a side chain of glucose branches off from the main chain. Key features to note: - **Linear Chains**: Glucose molecules connected in a straight line represent the α(1→4) glycosidic bonds. - **Branch Points**: Look for the point in the structure where a glucose unit is connected to three other glucose molecules. These α(1→6) linkages are the branch points where the glycogen debranching enzyme acts. In the context of the enzyme function, the glycogen debranching enzyme helps to handle the α(1→6) glycosidic bonds at branch points. For educational purposes, students are instructed to identify and circle these specific substrates as part of their learning exercise. By identifying these substrates, students can better understand the role of the debranching enzyme in glycogenolysis, the metabolic pathway of breaking down glycogen into glucose.
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