Ramachandran plot

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Ram·a·chan·dran plot

(rahm'a-chahn'drahn),
a graphic representation in which the dihedral angle of rotation about the α-carbon-to-carbonyl-carbon bond in polypeptides is plotted against the dihedral angle of rotation about the α-carbon-to-nitrogen bond.
Synonym(s): conformational map
[G. N. Ramachandran]
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