Chain A ( I449 D450 P451 S452 I453 I454 Y455 S456 D457 K458 K483 V484 L485 M488 W496 Y547 A563 D565 M566 R783 R786 C789 V790 T791 N792 D793 Q794 L795 A799 N800 M802 S803 S804 V805 S806 T807 N808 T811 L868 L870 D871 P872 S873 I874 G875 G876 V877 C878 G879 T880 R884 F890 P891 D892 P893 V894 F920 S931 H932 I933 E934 K935 L936 L937 E938 D939 P940 T941 S942 L943 I945 M947 G948 M949 S950 A951 A952 N953 L954 L955 K956 T957 E958 I959 K960 I982 E985 D986 E987 K988 L989 R990 L993 F1000 P1001 R1002 F1003 L1004 S1005 E1006 K1008 A1009 F1012 M1013 G1014 V1015 A1016 S1017 S1018 I1019 V1020 S1021 L1022 F1023 Q1024 N1025 S1026 R1027 T1028 I1029 R1030 T1040 I1041 D1042 L1044 I1045 K1047 S1048 T1051 S1052 H1055 Y1059 R1080 W1084 L1089 G1090 T1091 T1092 T1147 S1148 E1149 S1150 T1151 S1152 I1153 E1158 K1159 E1160 S1161 K1162 I1163 R1168 H1217 R1218 F1219 S1220 S1222 R1223 V1224 S1225 H1226 W1319 )