Chain A ( Y19 E22 F26 Q46 R205 N206 A207 X208 X209 A210 G211 R212 L213 Q214 G215 L216 A217 G218 G219 A220 P221 G222 E225 C226 M238 R239 P240 R241 X242 L243 E244 V245 T246 I247 S248 T249 G250 E251 K252 A253 P254 A255 N256 P257 E258 I259 L260 L261 T262 L263 E265 A269 L1599 T1600 V1601 E1602 E1603 R1604 N1605 L1606 S1608 V1609 K1612 I1615 R1619 A1620 R1623 G1677 E1678 S1679 V1681 F1682 Y1683 K1685 M1686 D1689 Y1690 R1692 Y1693 E1696 Y1714 A1721 L1725 P1726 P1727 T1728 H1729 P1730 I1731 R1732 L1733 G1734 L1735 A1736 L1737 N1738 F1739 S1740 V1741 F1742 Y1743 Y1744 E1745 I1746 S1749 P1750 D1751 A1753 C1754 R1755 L1756 A1757 K1758 A1759 A1760 F1761 D1762 D1763 A1764 E1767 L1768 L1771 E1774 S1775 Y1776 K1777 D1778 S1779 T1780 L1781 I1782 M1783 Q1784 L1785 L1786 R1787 D1788 N1789 L1790 T1791 L1792 W1793 T1794 S1795 M1797 )