2f4v F 3.8 BS01 rna A 0 R2 Y4 Y50 E69 N73 R87 V91 K92 R2 Y4 Y50 E69 N73 R87 V91 K92 ? 0003735,0005737,0005840,0006412,0019843,0070181,1990904 Kd=2.2uM Q5SLP8 16492561 5 ~ 1534 MRRYEVNIVLNPNLDQSQLALEKEIIQRALENYGARVEKVEELGLRRLAYPIAKDPQGYFLWYQVEMPEDRVNDLARELRIRDNVRRVMVVKSQEPFLANA