Ligand Atom Receptor Atom Distance -- C 87 TYR CD1 A 211 LEU CD2 2.61 C 21 TYR OH A 182 SER CB 2.66 C 89 THR CG2 A 60 ASN ND2 2.66 C 55 HIS ND1 A 156 ALA CB 2.73 C 55 HIS CE1 A 154 SER OG 2.75 C 87 TYR CE1 A 211 LEU CD2 2.76 C 55 HIS CE1 A 156 ALA CB 2.80 C 91 LEU CD1 A 203 TYR OH 2.85 C 42 HIS CD2 A 97 SER CB 2.90 C 55 HIS NE2 A 154 SER OG 2.90 C 91 LEU CD1 A 203 TYR CZ 2.99