Chain A ( L36 L42 T44 P46 N47 L49 V50 A51 V105 D108 R109 W111 A112 I113 Y196 I199 Y200 S395 T396 A397 K398 E399 R400 R401 G402 V403 K404 V405 F406 G407 I408 I409 C412 I457 Y458 V460 F461 N462 H463 D464 Y465 Q466 N467 )