GLN A 99 ASN A 100 GLU A 104 TYR A 105 SER A 106 PRO A 107 GLU A 110 LYS A 111 HIS A 112 MET A 129 SER A 130 ASN A 170 LYS A 215 VAL A 216 LYS A 234 SER A 235 ARG A 243 GLU B 31 SER B 35 PHE B 36 ASP B 49 TYR B 50 TYR B 53 SER B 71 GLU B 73 LYS B 74 SER B 113 GLY B 141 PHE B 142 TYR B 143 TRP B 150 ARG B 160