Ligand Atom Receptor Atom Distance -- C 87 TYR O A 185 ASN OD1 2.63 C 57 GLY O A 186 ARG NH2 2.69 C 89 THR N A 183 ASN O 2.77 C 50 ASP OD2 A 188 SER OG 2.83 C 89 THR OG1 A 183 ASN O 2.83 C 54 GLN O A 156 SER O 2.84 C 58 PHE CE1 A 186 ARG O 2.84 C 21 TYR OH A 192 TYR CE1 2.90 C 21 TYR OH A 157 GLY O 2.91 C 89 THR OG1 A 183 ASN C 2.91