SER 1 * PRO 2 * GLY 3 * ILE 4 * TRP 5 * HIS 22 * GLU 29 * LEU 46 * LYS 47 * LEU 48 * ALA 49 * GLY 50 * ARG 51 * TRP 52 * PRO 53 * VAL 54 * LYS 55 * THR 56 * ALA 77 * GLY 78 * ILE 140 * VAL 141 * ASP 142 * ILE 143 * ILE 144 * ALA 145 * THR 146 * ASP 147 * ILE 148 * GLN 149 * SER 174 * GLY 175 * TYR 176 * ILE 177 * GLU 178 * TRP 201 * GLN 270 * MET 271 * ALA 272 * VAL 273 * PHE 274 * ILE 275 * HIS 276 * ASN 277 * HIS 278 * LYS 279 * ARG 280 * LYS 281 * GLY 282 * TYR 283 * SER 284 * ALA 285 * GLY 286 * GLU 287 * ARG 288 * ILE 289 * VAL 290 * ASP 291 *