PRO 54 * ILE 57 * HIS 58 * LEU 61 * THR 62 * ARG 77 * ASP 78 * LEU 80 * MET 81 * ARG 82 * LEU 83 * VAL 84 * LEU 85 * THR 86 * VAL 87 * ARG 88 * SER 89 * GLN 160 * PHE 166 * PHE 173 * THR 174 * PHE 177 * PHE 178 * ILE 309 * LYS 310 * ILE 311 * VAL 312 * ILE 313 * GLU 314 * GLU 315 * TYR 316 * VAL 317 * GLN 318 * GLN 319 * LEU 320 * SER 321 * GLY 322 * TYR 323 * LEU 325 * GLN 326 * LEU 327 * LYS 328 * PHE 329 * ASP 330 * LEU 333 * GLU 348 * PHE 349 * ASN 350 * GLN 351 * LEU 352 * TYR 353 * HIS 354 * TRP 355 * ILE 402 * PHE 471 * LEU 475 * HIS 481 * ILE 485 * PHE 486 * GLY 487 * GLU 488 * SER 489 * MET 490 * ILE 491 * GLU 492 * MET 493 * GLY 494 * ALA 495 * PRO 496 * PHE 497 * SER 498 * LEU 499 * LYS 500 * GLY 501 * LEU 502 * LEU 503 *