Out of the following, which type of interaction is responsible for the stabilisation of $α$ -helix structure of proteins?

Hydrogen bonding

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vander Waals forces

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Ionic bonding

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Covalent bonding

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Solution

The correct option is A Hydrogen bonding
$α$ -helix is one of the most common ways in which a polypeptide chain forms all possible hydrogen bonds by twisting into a right handed screw (helix) with the $- N H$ group of each amino acid residue hydrogen bonded to the $> C = O$ of an adjacent turn of the helix.

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$α -$ helix is a secondary structure of proteins formed by twisting of polypeptide chain into right handed screw like structure. Which type of interactions are responsible for making the $α -$ helix structure stable?

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Out of the following, which type of interaction is responsible for the stabilisation of α-helix structure of proteins?

The correct option is A Hydrogen bondingα-helix is one of the most common ways in which a polypeptide chain forms all possible hydrogen bonds by twisting into a right handed screw (helix) with the −NH group of each amino acid residue hydrogen bonded to the >C=O of an adjacent turn of the helix.

Out of the following, which type of interaction is responsible for the stabilisation of $α$ -helix structure of proteins?