Structural features of residue 4 in chain A ********************************* Protrusion Index: THR A 4 N 1.04 THR A 4 CA 0.98 THR A 4 C 0.63 THR A 4 O 0.62 THR A 4 CB 1.17 THR A 4 OG1 1.19 THR A 4 CG2 1.78