Ligand Atom Receptor Atom Distance -- C 89 THR OG1 A 218 ASN O 2.64 C 42 HIS O A 218 ASN ND2 2.73 C 42 HIS NE2 A 181 ASP OD2 2.74 C 87 TYR N A 62 ASN OD1 2.81 C 89 THR O A 155 ASN ND2 2.83 C 42 HIS ND1 A 188 SER OG 2.91 C 87 TYR N A 62 ASN ND2 2.96 C 50 ASP OD1 A 213 THR OG1 2.99