Structural features of residue 21 in chain A
********************************* Protrusion Index: GLY A 21 N 1.13 GLY A 21 CA 0.97 GLY A 21 C 0.74 GLY A 21 O 0.74 ********************************* Van der Waal's Interactions: GLY A 21 O 169 TYR A 22 OH 181 -0.030 INTRA-CHAIN GLY A 21 O 169 SER B 23 OG 187 -0.063 INTER-CHAIN GLY A 21 O 169 TRP B 24 CH2 201 -0.016 INTER-CHAIN