A Ramachandran plot shows a the amino acid residues which ha

A Ramachandran plot shows:

a. the amino acid residues which have the greatest degree of rotational freedom

b. the sterically allowed rotational angles between R groups and alpha-carbons in a peptide

c. the sterically allowed rotational angles between alpha-carbon and the amind nitrogen as well as between the alpha-carbon and the amide carbonyl carbon

d. the sterically allowed rotational angles about the amid nitrogen and CO

e. the amino acid residues that form alpha-helix, beta pleated sheet, etc

Solution

Ans).c. the sterically allowed rotational angles between alpha-carbon and the amind nitrogen as well as between the alpha-carbon and the amide carbonyl carbon