1 G->S 2 K->A 3 F->V 6 I->T 18 F->I 46 T->A 53 A->S 55 C->F 59 L->F 108 Y->F 135 A->G 188 A->G 197 Y->C 200 L->F 220 C->F 222 C->T 264 S->N