Chain A ( H110 S893 E895 L896 W897 I898 A899 A900 V901 L902 G903 D904 H911 G912 T914 A915 F916 G917 W918 M919 T920 L921 D930 L931 H932 S933 K934 T935 A936 T937 T938 V939 G940 I941 S942 R943 E944 H945 A946 K947 I948 F949 N950 Y951 G952 R953 I954 A957 G958 Q959 P960 F961 A962 E963 R964 L965 L966 M967 Q968 F969 N970 H971 R972 L973 E977 A978 A979 E980 K981 A982 Q983 Q984 M985 Y986 A987 A988 T989 K990 G991 L992 W1049 G1051 G1052 T1053 E1054 S1055 E1056 M1057 F1058 N1059 )