Chain A ( M1 E2 L3 T4 N5 V6 S7 V8 I9 R10 N11 D12 T13 S14 A15 Q16 S17 I18 E35 N37 C38 Y39 I40 I41 D42 T43 D44 H45 L46 V47 E48 R49 L50 L52 V53 F98 I99 T102 Y103 L105 I106 M107 S108 V109 K110 V111 L112 Y113 E114 Y115 N116 E117 W118 K122 W125 V129 V130 M132 M133 T134 M135 S136 H137 V138 A139 I140 K186 T188 L189 L190 E192 L193 C201 T204 L205 N206 Y208 R209 L210 E211 L212 T213 A214 L215 V216 I217 H218 N219 E220 Y222 K223 R226 F227 R230 N231 I235 N297 N300 T304 E307 F315 L319 Y322 I323 V326 D327 A328 V329 S330 L331 L332 T333 )