Chain A ( A120 I121 D133 P134 E135 V136 Q137 D138 F139 R140 R141 N142 I143 L144 V146 C147 K271 Y361 H362 G363 G364 E365 P366 R401 C403 W424 G425 N426 I427 N428 L443 N444 W446 N457 P458 I459 G460 V461 T462 G463 S464 N465 P466 N467 V587 P595 A598 M599 E600 L601 L602 D603 C604 N605 Y606 P607 D608 P609 M610 V611 R612 G613 F614 A615 V616 R617 C618 L619 E620 L623 T624 D625 D626 K627 L628 S629 Q630 Y631 L632 I633 Q634 L635 V636 Q637 V638 L639 K640 Y641 E642 Q643 Y644 L645 D646 N647 L648 L649 V650 R651 F652 L653 L654 K655 K656 A657 L658 Q661 R662 I663 G664 H665 F666 F667 F668 W669 H670 L671 K672 S673 E674 M675 H676 N677 K678 T679 V680 S681 Q682 R683 F684 G685 L686 L687 L688 E689 S690 Y691 C692 R693 A694 C695 Y698 L699 H701 L702 V706 D806 R808 Q809 M811 L812 T813 Q815 I816 I819 N822 L839 S840 I841 G842 D843 C844 N1000 L1001 F1002 S1003 M1004 M1005 L1006 G1007 S1008 G1009 M1010 P1011 E1012 L1013 Q1014 S1015 F1016 D1018 I1019 ),  Chain B ( Q475 )