ALA 20 * LYS 21 * ILE 22 * ARG 25 * GLY 75 * GLY 77 * TYR 78 * ASP 79 * CYS 80 * PRO 81 * GLY 117 * GLY 118 * TRP 119 * HIS 120 * HIS 121 * ALA 122 * ALA 127 * SER 128 * GLY 129 * PHE 130 * CYS 131 * TYR 132 * TYR 152 * ASP 154 * LEU 155 * ASP 156 * LEU 157 * HIS 158 * HIS 159 * GLY 160 * ASP 161 * GLY 162 * HIS 179 * GLY 184 * PHE 185 * PHE 186 * PRO 187 * GLY 188 * GLN 241 * LEU 242 * GLY 243 * ALA 244 * ASP 245 * THR 246 * ASP 250 * PRO 251 * MET 252 * CYS 253 * SER 254 * GLY 280 * GLY 281 * GLY 282 * GLY 283 * TYR 284 * TRP 293 * LEU 370 * ALA 371 * LYS 372 * ILE 373 * PRO 374 * ARG 376 * TYR 429 * ASP 430 * TRP 470 * GLY 480 * PHE 481 * HIS 509 * ASP 596 * GLY 600 * ASP 601 * PRO 602 * MET 603 * CYS 604 * GLY 633 * GLY 634 * TYR 635 * ASN 636 * LEU 637 *