6cmn A 1.796 BS01 rna D 0 Y13 K22 K23 R47 Q48 R49 R52 Q54 Q85 A87 K88 Y9 K18 K19 R43 Q44 R45 R48 Q50 Q81 A83 K84 ? 0003676,0003723 Kd=2.5nM G1TM83 29961805 18 ~ 44 ETRPNHTIYINNLNSKIKKDELKKSLHAIFSRFGQILDILVPRQRTPRGQAFVIFKEVSSATNALRSMQGFPFYDKPMAIQYAKTDKRIPA