Structural features of residue 18 in chain A ********************************* Protrusion Index: VAL A 18 N 0.75 VAL A 18 CA 0.67 VAL A 18 C 0.52 VAL A 18 O 0.38 VAL A 18 CB 0.44 VAL A 18 CG1 0.31 VAL A 18 CG2 0.51