4xic D 2.69 BS01 dna E 0 R5 T7 Y25 R28 R31 Q50 R53 M54 R1 T3 Y21 R24 R27 Q46 R49 M50 ? 0000981,0003677,0006355 Kd=2.9nM P02833 26331260 0 ~ 14 RQTYTRYQTLELEKEFHFNRYLTRRRRIEIAHALSLTERQIKIWFQNRRMKWKKEN 4xic D 2.69 BS02 dna F 0 R5 Q6 Y8 Q44 I47 N51 R1 Q2 Y4 Q40 I43 N47 ? 0000981,0003677,0006355 Kd=2.9nM P02833 26331260 23 ~ 37 RQTYTRYQTLELEKEFHFNRYLTRRRRIEIAHALSLTERQIKIWFQNRRMKWKKEN