Ligand Atom Receptor Atom Distance -- C 55 HIS NE2 A 186 ARG NH2 1.91 C 38 GLY CA A 129 PRO CG 1.93 C 50 ASP OD2 A 188 SER O 1.97 -- C 55 HIS CD2 A 186 ARG NH2 2.11 C 40 GLY CA A 130 SER OG 2.25 C 159 GLY O A 129 PRO CB 2.34 C 36 ALA CB A 156 SER CB 2.35 C 36 ALA CB A 156 SER CA 2.36 C 55 HIS NE2 A 186 ARG CZ 2.49 C 35 MET O A 155 ASN O 2.50 C 38 GLY C A 129 PRO CG 2.50 C 38 GLY N A 129 PRO CG 2.61 C 51 PRO CD A 157 GLY O 2.72 C 91 LEU CD1 A 62 ASN ND2 2.82 C 50 ASP OD2 A 188 SER C 2.84 C 38 GLY CA A 129 PRO CB 2.85 C 48 SER OG A 156 SER O 2.86 C 40 GLY N A 130 SER OG 2.88 C 39 HIS N A 129 PRO CG 2.89 C 55 HIS CD2 A 186 ARG CZ 2.91 C 87 TYR OH A 217 LEU CD1 2.92 C 55 HIS NE2 A 186 ARG NE 2.93 C 55 HIS CE1 A 186 ARG NH2 2.99