ARG 87 * HIS 88 * TRP 163 * VAL 164 * TYR 165 * GLU 166 * GLU 167 * GLU 168 * VAL 169 * PHE 170 * SER 171 * ALA 172 * TYR 218 * TRP 315 * ARG 318 * PHE 319 * ARG 320 * PRO 321 * TYR 509 * GLY 511 * PRO 512 * CYS 513 * SER 514 * TYR 547 * TRP 591 * SER 592 * TYR 593 * GLY 594 * ALA 616 * PRO 617 * VAL 618 * TRP 621 * TYR 624 * ASP 625 * SER 626 * VAL 627 * TYR 628 * THR 629 * ARG 631 * TYR 632 * ASP 670 * ASP 671 * ASN 672 * VAL 673 * GLN 677 * HIS 702 * GLY 703 *