Chain A ( I128 S129 D131 R132 Y133 A135 V136 A137 P139 M140 Y142 T205 V208 Y209 I210 K211 I212 Y213 I214 V215 L216 R217 R219 K362 L363 S364 Q365 Q366 K367 E368 K369 K370 A371 T372 Q373 M374 A376 I377 L379 )