Chain A ( M1 K2 R3 T4 P5 T6 E9 R12 E13 K16 L17 L20 D81 L82 V83 R84 I85 Q86 G87 K88 D89 L90 L91 T92 P93 R96 L98 T105 Y106 K107 Y108 L109 N110 T111 R112 L113 V201 L203 N205 Y214 L215 K216 P219 Y220 F221 M226 A227 V228 S229 W230 H231 H232 D233 E234 N235 L236 K275 S277 N302 A303 H305 Q306 H307 C308 V309 L310 A311 T320 R322 A324 E325 F376 E377 R380 Q381 F384 Q446 N447 L448 R449 R450 E451 W452 H453 A454 R455 C456 S458 I460 )