Chain A ( Q38 V123 E124 Q125 L126 G127 I128 P129 ),  Chain B ( C27 W28 D29 I30 S31 S32 S33 G34 V35 N36 L37 Q38 L47 Q49 L50 T51 L52 R53 S54 E55 N65 L66 A67 V123 E124 Q125 L126 G127 I128 E130 H246 ),  Chain E ( H152 K154 R156 I158 ),  Chain D ( M147 T148 D149 F150 Y151 H152 S153 K154 R155 R156 )