/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 13 Discuss the characteristics of a... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 22: Problem 13

Discuss the characteristics of an amide group and its importance in protein structure.

Short Answer

Expert verified
The amide group is characterized by a nitrogen atom bonded to a carbonyl group (-CONH2). It has a planar structure and can form hydrogen bonds due to its polarity. The partial double-bond nature contributes to the rigidity and stability of the peptide bonds in proteins, influencing the formation and stability of protein structures such as alpha-helices and beta-sheets.

Step by step solution

01

Identifying an Amide Group

An amide group is characterized by a nitrogen atom connected to a carbonyl carbon atom (carbon double-bonded to an oxygen), usually depicted as -CONH2 in organic chemistry. This means it consists of a carbon atom double-bonded to an oxygen atom and single-bonded to a nitrogen atom, which is in turn bonded to two hydrogen atoms.
02

Explaining the Properties of an Amide Group

One of the key features of the amide group is its planar structure due to the 'sp2' hybridization of the central carbon atom. Moreover, the amide group has a partial double-bond character, which results from the resonance between the lone pair of electrons on the nitrogen atom and the carbonyl group. The resulting partial double bond imparts rotational stability, making the amide group stable. The amide group is also polar due to the presence of electronegative atoms (nitrogen and oxygen), allowing it to engage in hydrogen bonding.
03

Amide Group's Role in Protein Structure

Amide groups play a vital role in protein structure as they are part of the peptide bonds that link amino acids together to form proteins. The rotational stability conferred by the partial double bond character of the amide group contributes to the rigid, planar nature of peptide bonds. The ability of the amide group to form hydrogen bonds also allows for the stability of secondary protein structures such as alpha-helices and beta-sheets.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

When a nonapeptide (containing nine amino acid residues) isolated from rat brains was hydrolyzed, it gave the following smaller peptides as identifiable products: Gly-Ala-Phe, Ala-Leu-Val, Gly-Ala-Leu, Phe-Glu-His, and His-Gly-Ala. Reconstruct the amino acid sequence in the nonapeptide, giving your reasons. (Remember the convention for writing peptides.)

What kind of intermolecular forces are responsible for the aggregation of hemoglobin molecules that leads to sickle-cell anemia?

Why is sickle-cell anemia called a molecular disease?

Vinyl chloride, \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCl}\), undergoes copolymerization with 1,1 -dichloroethylene, \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CCl}_{2},\) to form a polymer commercially known as Saran. Draw the structure of the polymer, showing the repeating monomer units.

Teflon is formed by a radical addition reaction involving the monomer tetrafluoroethylene. Show the mechanism for this reaction.
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Making Measurements

Read Explanation

Ionic and Molecular Compounds

Read Explanation

Nuclear Chemistry

Read Explanation

Chemical Reactions

Read Explanation

Chemistry Branches

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.