The peptide bond is rigid and planar carboxyl C 1.24 terminus 153A 146A 132 Amino Inus b)The conformation corresponding to =1800, v=1800 goel when the peptide is in its fully extended conformation The conformation corresponding to o =0, y=0, which is disallowed by the steric overlap between H and o atoms of adjacent peptide planes. (c)The peptide bond is rigid and planar c) The conformation corresponding to =00 , =00 , which is disallowed by the steric overlap between H and O atoms of adjacent peptide planes. b) The conformation corresponding to =1800 , =1800 , when the peptide is in its fully extended conformation