Chain A ( I315 F359 V360 S361 A404 L405 D406 Q407 H408 K409 L410 G411 R412 L413 G414 D415 M416 F417 K418 C419 G433 S434 F435 S436 F437 D438 E439 S461 S463 H484 R485 S549 ),  Chain B ( Y440 S445 A446 S447 V448 E449 H450 L451 R452 S453 L454 I456 F458 I489 L490 S491 K492 T493 H494 N495 N496 V497 I498 I522 Y523 C524 Q525 L526 Y571 L572 R579 S593 W594 ),  Chain C ( T3 A4 D6 )