What is the number of amino acids present in single turn of $\alpha$-helix of protein?

Question

Aicharya · Accepted Answer

The $\alpha$-helix can be described as a $3.6_{13}$ helix, since the $i+4$ spacing adds three more atoms to the H -bonded loop compared to the tighter $3_{10}$ helix, and on average, 3.6 amino acids are involved in one ring of $\alpha$-helix.

What is the number of amino acids present in single turn of $\alpha$-helix of protein?

Solution