Chain A ( H1057 H1058 V1059 V1060 R1061 E1077 L1078 M1079 A1080 H1081 G1082 D1083 L1084 K1085 S1086 Y1087 L1088 L1091 P1099 R1101 P1104 T1105 L1106 Q1107 E1108 M1109 I1110 Q1111 M1112 E1115 C1138 M1139 V1140 A1141 H1142 D1143 F1144 T1145 V1146 K1147 I1202 K1264 D1266 L1267 H1268 P1269 S1270 F1271 )