Stability of -Helix structure of proteins depends upon

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-Helix structure of proteins:

The -helix is a secondary structure of proteins where the polypeptide chain coils into a right-handed helix.

Stabilization of -helix:

The -helix is stabilized primarily by intramolecular hydrogen bonds formed between:
- The –NH– group of one amino acid residue
- The –C=O group of the amino acid residue 4 positions ahead in the chain

These H-bonds run parallel to the helix axis and are responsible for maintaining the helical conformation.

Other interactions (v

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