Chain A ( I458 S459 F460 D461 A462 R464 N465 G466 L467 A468 L469 A470 A471 P472 A473 L474 G475 I507 W509 G510 T511 N512 G513 G514 N515 F516 H522 S523 P524 A525 V526 I527 E528 D529 A530 P531 T532 T570 N571 S572 Y573 D574 Y575 N576 S577 V578 R579 F580 A581 A582 I584 S585 K586 P587 A588 G589 G590 T592 Q594 V595 E596 S597 L598 F599 T600 G630 R631 Q632 W633 S634 L635 G636 T637 R638 K639 D640 S641 T642 W643 E667 N668 A669 N670 P671 R672 N673 I674 L675 D688 I689 G690 N691 V692 D693 I694 L695 Y696 S697 T700 N701 K702 F703 T704 Y705 Y706 Y707 Q708 V709 G710 G711 A712 I713 T714 T715 W716 P717 E718 V719 Q720 V721 N722 Y776 K778 )