Ligand Atom Receptor Atom Distance -- C 43 CYS O A 212 ASN O 2.39 C 43 CYS O A 212 ASN CA 2.63 C 43 CYS O A 212 ASN CB 2.71 C 43 CYS O A 212 ASN C 2.72 C 43 CYS O A 212 ASN N 2.83 C 40 GLY N A 60 ASN OD1 2.87 C 39 HIS ND1 A 203 TYR OH 2.93 C 41 ARG NH2 A 210 SER O 2.94 C 89 THR O A 153 ASN O 2.94 C 41 ARG NE A 210 SER O 2.95 C 101 GLU OE2 A 200 GLN NE2 2.96 C 91 LEU O A 182 SER OG 2.96