TYR 72 * VAL 73 * ASP 74 * THR 75 * LEU 76 * THR 83 * ASN 87 * GLY 121 * GLY 122 * PHE 123 * TYR 124 * SER 125 * SVV 203 * VAL 275 * ASP 276 * HIS 277 * GLU 278 * TRP 279 * HIS 280 * LEU 282 * GLU 285 * SER 286 * ILE 287 * PHE 288 * ARG 289 * PHE 290 * SER 291 * GLY 328 * TYR 330 * PHE 331 * LEU 332 * VAL 333 * TYR 334 * GLY 335 * HIS 440 *