1si3 A 2.6 BS01 rna B 0 H269 M273 R275 R278 F292 Y309 F310 Y314 K333 H334 T335 Y336 G347 Q348 H46 M50 R52 R55 F69 Y80 F81 Y85 K104 H105 T106 Y107 G118 Q119 ? 0003723 Kd=2.18nM Q9UL18 15152257 401 ~ 409 MAQPVIEFMCEVLDIRNIDEQPKPLTDSQRVRFTKEIKGLKVEVTHCGQMKRKYRVCNVTRRPASHQTFPLQVECTVAQYFKQKYNLQLKYPHLPCLQVGQEQKHTYLPLEVCNIVAGQR