Ligand Atom Receptor Atom Distance -- C 54 GLN OE1 A 132 THR OG1 2.80 C 55 HIS NE2 A 106 ALA O 2.83 C 89 THR OG1 A 46 GLY O 2.87 C 52 ASN ND2 A 110 GLU OE2 2.90 C 87 TYR OH A 56 THR OG1 2.94 C 37 PRO CD A 115 ASN OD1 2.99