Indian Forest Service (Mains), Chemistry optional · 2024 · Paper II

Q5(d). Geometry of a peptide bond

Question

Draw a peptide bond with representative bond lengths and bond angles.

The Cα–C(=O)–NH–Cα peptide unit is approximately planar; C–N is about 1.33 Å and C=O about 1.23 Å.

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Coverspeptide bondplanar amidebond lengths and anglespartial double bondprotein structure