2xs2 A 1.35 BS01 rna B 0 F43 K70 I72 Y82 F84 K109 P112 A113 I114 R115 K116 H123 F12 K39 I41 Y51 F53 K78 P81 A82 I83 R84 K85 H87 ? 0003676,0003723,0003730 Kd=38.2nM Q64368 22021443 2 LPEGKIMPNTVFVGGIDVRMDETEIRSFFARYGSVKEVKIITDRTGVSKGYGFVSFYNDVDVQKIVESQINFHGKKLKLGPAIRKQH