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Which of the following statements are true for ramachandran plot? p, it can be used to describe the backbone conformation of any polypeptide residue. q. it can
Which of the following statements are true for Ramachandran plot? P, It can be used to describe the backbone conformation of any polypeptide residue. Q. It can be used to describe simple secondary structures of proteins. R. It is plotted with coordinates of o and y of a polypeptide chain. S. It is used to describe side chain conformation of the amino acid residues in a polypeptide chain. a. P and Q b. P and R C. P, Q and R d. P, Q, R and S [II
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Yogita Basnal![best-answer]()
Option (d) is right answer. All statements, P, Q, R &S are true. Ramchandran plot is used to predict probability of Amino acids to form secondary structures based on the allowed and disallowed values of "phi & psi" angle. The values of "phi & psi" angles are calculated based on van der waals radius of side chain atoms. With the help of these values we can predict probability of a peptide to form simple secondary structures like alpha helix, beta sheet etc.