`alpha-`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 `alpha`-helix structure stable?

Explanation

`alpha`-helix is a secondary structure of proteins formed by twisting of polypeptide chain to right handed screw like structure. Hydrogen bonds formed between `-NH-` group of amino acids in one turn with the groups of amino acids belonging to adjacent turn is responsible for making the `alpha`-helix structure stable.