Ligand Atom Receptor Atom Distance -- B 18 LYS NZ A 124 ASP OD1 2.80 B 11 GLN NE2 A 121 GLU OE1 2.82 B 14 LYS NZ A 99 GLN O 2.82 B 8 ARG NH2 A 121 GLU OE2 2.82 B 110 LYS NZ A 123 ASP O 2.85 B 8 ARG NE A 121 GLU OE2 2.85 B 104 ARG NH1 A 134 TYR O 2.93 B 18 LYS NZ A 124 ASP OD2 2.95 B 15 ALA N A 94 ASP OD2 2.97