6g2k B 2.01 BS01 rna R 0 C245 F247 Y249 I276 F279 F289 Q316 K320 T321 C4 F6 Y8 I35 F38 F48 Q75 K79 T80 ? 0003676,0003723 Kd=19.3uM Q15717 30418581 1 ~ 6 MGWCIFIYNLGQDADEGILWQMFGPFGAVTNVKVIRDFNTNKCKGFGFVTMTNYEEAAMAIASLNGYRLGDKILQVSFKTN