Ligand Atom Receptor Atom Distance -- B 20 LYS CD A 33 TRP CZ2 2.11 B 24 TYR OH A 33 TRP NE1 2.31 B 24 TYR OH A 52 ASN ND2 2.50 B 24 TYR OH A 33 TRP CD1 2.57 B 20 LYS CE A 33 TRP CZ2 2.69 B 34 PHE CG A 68 THR OG1 2.71 B 12 HIS CE1 A 29 GLY O 2.77 B 38 ALA CB A 52 ASN O 2.88 B 34 PHE CD2 A 68 THR OG1 2.89 B 45 LYS CG A 56 THR OG1 2.90 B 20 LYS CE A 33 TRP CH2 2.93 B 24 TYR CE1 A 52 ASN OD1 2.93 B 35 VAL CG2 A 50 ALA O 2.95 B 20 LYS CD A 33 TRP CH2 2.99