Chain A ( D69 H70 I71 I111 K112 W113 F114 N115 T116 N117 Y118 H119 Y120 L164 F239 V260 H261 I286 D287 G288 R289 N290 V291 W292 A293 S294 K299 S318 S319 S320 L322 H323 V324 P325 V337 G340 L341 K347 F388 I420 S422 N477 D478 M479 V480 E481 F482 F483 G484 E485 K486 L487 Q488 G489 F490 L491 V492 T493 G496 V498 Q499 S500 Y501 G502 R504 A505 V506 K507 P508 P509 I510 I511 Y512 G513 D514 V515 K516 W517 L541 T542 G543 P544 V545 T546 I547 L548 N549 W550 S551 F552 E553 R554 V555 D556 L557 P558 R559 K560 V561 V562 Q563 D564 Q565 I566 A567 L568 A569 I570 N571 E572 V574 Q586 V587 D588 E589 P590 A591 L592 R593 E594 G595 L596 P597 L598 R599 S600 E601 Y602 H603 Q605 Y606 L607 D609 A610 S613 F614 A617 T629 H630 M631 C632 Y633 Q635 F636 Q638 I639 S652 I653 C715 G716 K718 )