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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The β-pleated sheet is a structure that commonly arises in proteins. Part of a β-pleated sheet is shown in the following figure. This type of structure is an example of which level of protein structure: primary, secondary, tertiary, or quaternary?

images

Interpretation Introduction

Interpretation:

The type of structure of the protein (primary, secondary, tertiary, or quaternary) has to be identified.

Concept introduction: Proteins are natural biopolymers. Amino acids are the main building block of protein molecules. A large number of amino acids condense together to form a polypeptide chain. A large polypeptide chain is called protein. Proteins perform many functions and are required for the structure, function, and regulation of body tissue and organs.

Protein molecule has 4 different structure namely primary, secondary, tertiary and quaternary.

Explanation

The carbonyl oxygen of one amide linkage interact via hydrogen bonding with the amino hydrogen of another amide linkage of the polypeptide chain and thus results in the spatial arrangement of the peptide chain such as α-helix and β-pleated sheet structure.

When hydrogen bonding occurs between the amino acid                                                                                                                                                                                                                                                                                                                                                                           

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