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What type of bonding helps in stabilising the ∝-helix structure of proteins? - Chemistry

What type of bonding helps in stabilising the ∝-helix structure of proteins?

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Solution 1

The H-bonds formed between the −NH group of each amino acid residue and the  group of the adjacent turns of the ∝-helix help in stabilising the helix.

Solution 2

The α-helix structure of proteins is stabilized by intramolecular H-bonding between C = O of one amino acid residue and the N – H of the fourth amino acid residue in the chain. This causes the polypeptide chain to coil up into a spiral structure called right handed α- helix structure.

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NCERT Class 12 Chemistry Textbook
Chapter 14 Biomolecules
Q 14 | Page 423
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