Ligand Atom Receptor Atom Distance -- L 57 GLY O R 188 SER OG 2.82 L 55 HIS NE2 R 161 GLY N 2.93 L 55 HIS CG R 157 GLY O 2.94 L 55 HIS CE1 R 192 TYR OH 2.96 L 87 TYR CB R 218 ASN N 2.96 L 55 HIS CD2 R 157 GLY O 3.00