Conformation of peptide bond SlideShare

A Conformation of peptide bond SlideShare peptide bond additionally every now and then known as eupeptide bond is a chemical bond that is shaped by using becoming a member of the carboxyl crew of one amino acid to the amino team of another. A peptide bond is essentially an amide-type of covalent chemical bond. This bond hyperlinks two consecutive alpha-amino acids from C1 (carbon wide variety one) of one alpha-amino acid and N2 (nitrogen quantity two) of another. This linkage is observed alongside a peptide or protein chain.

During the formation of this bond, there is a launch of water (H2O) molecules

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Peptide Bond Formation or Synthesis

A Conformation of peptide bond SlideShare is shaped by way of a dehydration synthesis or response at a molecular level. This response is additionally recognized as a condensation response which typically happens between amino acids.

As depicted in the parent given below, two amino acids bond collectively to structure a peptide bond by means of the dehydration synthesis. During the reaction, one of the amino acids offers a carboxyl crew to the response and loses a hydroxyl crew (hydrogen and oxygen).

Peptide Bond Formation

The different amino acid loses hydrogen from the NH2 group

Let’s have a appear at a less complicated graph depicting the formation of the peptide bond.

Formation of peptide bond

During the reactions that occur, the ensuing CO-NH bond is the peptide bond, and the ensuing molecule is an amide. The four-atom useful team -C(=O)NH- is known as an amide team or a peptide group.

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Characteristics of Peptide Bonds

Conformation of peptide bond SlideShare

Peptide bond incorporates partial effective cost corporations (polar hydrogen atoms of amino groups) and partial terrible cost agencies (polar oxygen atoms of carboxyl groups).

Different Forms of Peptide Bond
Dipeptide = carries two amino acid units.
Tripeptide = consists of three amino acid units.
Tetrapeptide = includes four amino acid units.

Degradation of Peptide Bond

Peptide Bond Structure

A peptide bond is a planar, trans and inflexible configuration.The coplanarity of the peptide bond denotes the resonance or partial sharing of two pairs of electrons between the amide nitrogen and carboxyl oxygen.

The atoms C, H, N, O of the peptide bond lies in the identical plane, like the hydrogen atom of the amide team and the oxygen atom of the carboxyl crew are trans to every other.

Linus Pauling and Robert Corey are the scientists who determined that the peptide bonds are inflexible and planar.

Peptide Bond Features

Some of the key points of this bond include;

Writing Of The Peptide Bond Structure

The left facet is N-terminal residue and the proper facet is C-terminal residue. This amino acid sequence is examine from the N-terminal to the C-terminal

Stereochemistry Of The Peptide Bond

The steric association of the alpha carbon is constant by way of that configuration.


The wavelength of absorption for a peptide bond is 190–230 nm. With such reading, it skill that the bond is without difficulty prone to UV radiation.

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As a end result of its resonance stabilization, a Conformation of peptide bond SlideShare is nearly unreactive underneath physiological conditions. carbon. This consequences in the breaking of the carbonyl double bond and the formation of a tetrahedral intermediate.


Some Important Questions
1. What do you imply via the peptide bond?

2. What is a peptide bond? Which molecule is having this bond? Explain the electricity of this bond.

3. What is the response that prompted the formation of the peptide bond?

4. Write down some examples of the compounds having a peptide bond?

6. Are all proteins are bonded by way of peptide bond?

7. Comment on the partial double bond nature of the peptide bond? How is it possible?

8. What is polypeptide?

9. Explain the synthesis of the peptide bond in element with neat diagrams.

10. How is the degradation of the peptide bond is possible? Write down the equations

11. List out the catalysts used for the synthesis and degradation of the peptide bond

12. A peptide bond is inflexible and planar. Discuss.

13. What impact is induced through the coplanarity of the peptide bond?

14. Explain the illustration of the peptide bond.

15. Write a be aware on cis-trans isomerism of the peptide bond.
Frequently Asked Questions – FAQs
Linus Pauling and Robert Corey located that the peptide bond used to be inflexible and planar.
What do peptide bonds keep together?
Peptide bonds hyperlink and maintain the amino acids together.
Do peptide bonds rotate?
No, peptide bonds do no longer rotate.


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