Which type of interactions are responsible for making the α-helix structure stable?

Question

Which type of interactions are responsible for making the α-helix structure stable? (A) Peptide bonds between —NH2 and —CO groups of adjacent carbon chains. (B) Hydrogen bonds between —NH of amino acid in one turn with —CO of amino acid to adjacent turn. (C) —OH group of one amino acid with —CO group of other amino acid on the turn. (D) Hydrogen bonds between adjacent amino acids.

Tardigrade Admin · Accepted Answer

α-helix structures are held in shape by hydrogen bonds, which form between the carbonyl O of one amino acid and the amino H of another amino acid which make it stable.

Q. Which type of interactions are responsible for making the $α$ -helix structure stable?

Peptide bonds between $— N H_{2}$ and $— CO$ groups of adjacent carbon chains.

Hydrogen bonds between $— N H$ of amino acid in one turn with $— CO$ of amino acid to adjacent turn.

$— O H$ group of one amino acid with $— CO$ group of other amino acid on the turn.

Hydrogen bonds between adjacent amino acids.

$α$ -helix structures are held in shape by hydrogen bonds, which form between the carbonyl $O$ of one amino acid and the amino $H$ of another amino acid which make it stable.

Q. Which type of interactions are responsible for making the α-helix structure stable?

Peptide bonds between —NH2​ and —CO groups of adjacent carbon chains.

Hydrogen bonds between —NH of amino acid in one turn with —CO of amino acid to adjacent turn.

—OH group of one amino acid with —CO group of other amino acid on the turn.