Answered: Much of the strength of silk—a natural…

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter20: Proteins

Section: Chapter Questions

Problem 20.75EP

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Question

Much of the strength of silk—a natural protein fiber—is attributed to β-pleated sheets stacking to form a crystalline structure. The sequence within those sheets exhibits a repeating pattern, Gly-Ser-Gly-Ala-Gly-Ala. Why do you think these amino acids are prevalent in those crystalline structures?

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Step 1

Proteins are basically formed of amino acids and they are chemically bonded to each other mainly via amide linkages and other disulphide linkages wherever possible.

Glycine,Alanine are the examples of neutral amino acids.

Serine is an example of alcoholic amino acids.

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