Chain A ( H1184 V1263 L1265 E1268 A1269 A1270 V1271 A1314 A1339 L1340 Q1341 V1342 L1343 E1372 R1406 M1539 V1540 F1541 V1542 E1543 P1544 E1545 G1547 L1548 R1549 G1550 I1551 L1552 D1553 R1555 H1588 V1589 L1590 A1591 R1597 V1598 D1599 I1600 E1601 L1603 D1607 Y1611 F1628 )