SER 33 * HIS 86 * TYR 88 * ASN 115 * ALA 116 * ALA 117 * GLY 118 * GLY 119 * LEU 120 * VAL 126 * TYR 192 * VAL 193 * MET 194 * LEU 195 * GLY 196 * GLY 197 * PRO 198 * ASN 199 * PHE 200 * GLU 201 * THR 202 * GLU 205 * CYS 206 * LEU 209 * ALA 216 * VAL 217 * GLY 218 * MET 219 * SER 220 * SER 239 * LEU 240 * ILE 241 * THR 242 * ASN 243 * LYS 244 * VAL 245 * ILE 246 * LYS 254 * ALA 255 * ASN 256 * HIS 257 * GLU 259 * VAL 260 * LEU 261 * ALA 263 * GLY 264 *