4yhw A 3.25 BS01 rna E 0 P350 R353 F354 K357 K361 S364 R371 D374 R399 G439 W440 F441 M442 Q457 P16 R19 F20 K23 K27 S30 R37 D40 R65 G105 W106 F107 M108 Q123 ? 0000398,0046540 Kd=110nM Q03338 26161500 64 ~ 90 TVYHCKVFQFKNLQNPKIRFKLKMNSKELSLKGLCLRIRDDGPGIIIVVGNEKSCKFYENLVMKRIKWNEDFELHTNTGDIKMDMHNNSISKTWEGYLQDCKFKGWFMKVCNDQDSLLRTLGQFDSEHFYSPV