V. Sasisekharan
= V. Sasisekharan
{c}
<V. Sasisekharan> helped map geometrically allowed <polypeptide> backbone configurations. Representing the backbone by torsion angles exposes combinations excluded by steric overlap, connecting molecular geometry with restrictions on <protein> structure.<Stereochemistry of polypeptide chain configurations by G. N. Ramachandran and others>[1963, backbone torsion-angle representation and steric restrictions]{ref}