IGNOU BBCCT 105 2026 - Explain how Ramachandran plots are used to predict and validate protei

Question

Explain how Ramachandran plots are used to predict and validate protein secondary structure.

09 Feb 2026

Answer :

Word Count : 253

Ramachandran plots are graphical representations used to visualize the dihedral angles phi (φ) and psi (ψ) of amino acid residues in protein structures. These angles describe the rotation around the N-Cα and Cα-C bonds of the protein backbone, respectively. Because the peptide bond is planar and rigid, the allowed conformations of these angles are limited by

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