4yhw B 3.25 BS01 rna F 0 P350 K351 R353 F354 K357 K361 R371 D374 G439 W440 F441 M442 Q457 P16 K17 R19 F20 K23 K27 R37 D40 G105 W106 F107 M108 Q123 ? 0000398,0046540 Kd=110nM Q03338 26161500 64 ~ 90 TVYHCKVFQFKNLQNPKIRFKLKMNSKELSLKGLCLRIRDDGPGIIIVVGNEKSCKFYENLVMKRIKWNEDFELHTNTGDIKMDMHNNSISKTWEGYLQDCKFKGWFMKVCNDQDSLLRTLGQFDSEHFYSPV