ILE 31 * VAL 32 * LEU 48 * GLU 55 * LEU 56 * LEU 57 * CYS 58 * GLY 59 * THR 70 * ALA 71 * ALA 72 * HIS 73 * CYS 74 * LEU 75 * LEU 76 * TYR 77 * TRP 80 * LYS 82 * PHE 84 * TYR 120 * LEU 126 * ASP 129 * VAL 168 * GLY 172 * ASN 173 * GLU 176 * VAL 193 * LEU 195 * PHE 216 * CYS 217 * ALA 218 * GLY 219 * GLY 228 * ASP 229 * ALA 230 * CYS 231 * GLU 232 * GLY 233 * ASP 234 * SER 235 * GLY 236 * GLY 237 * PHE 239 * ILE 254 * VAL 255 * SER 256 * TRP 257 * GLY 258 * GLU 259 * GLY 260 * CYS 261 * ASP 262 * ARG 263 * LYS 266 * TYR 267 * GLY 268 * PHE 269 * TYR 270 * THR 271 * PRO 290 * GLN 291 * SER 292 * HIS 293 * ASN 294 *