4xid D 2.701 BS01 dna E 0 R5 T7 Y25 R28 R31 K46 Q50 R53 M54 R1 T3 Y21 R24 R27 K42 Q46 R49 M50 ? 0000981,0003677,0006355 Kd=11nM P02833 26331260 0 ~ 14 RQTYTRYQTLELEKEFHFNRYLTRRRRIEIAHALSLTERQIKIWFQNRRMKWKKEN 4xid D 2.701 BS02 dna F 0 R5 Q6 Y8 I47 N51 K55 R1 Q2 Y4 I43 N47 K51 ? 0000981,0003677,0006355 Kd=11nM P02833 26331260 24 ~ 38 RQTYTRYQTLELEKEFHFNRYLTRRRRIEIAHALSLTERQIKIWFQNRRMKWKKEN