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

Explanation

In `alpha`-helix structure, a polypeptide chain is stabilised by the formation of H-bonds between the group of one amino acid residue and the group of the fourth amino acid residue in the chain