2bu1 B 2.2 BS01 rna R 0 T45 S47 R49 S51 S52 N55 K57 T59 K61 T91 T45 S47 R49 S51 S52 N55 K57 T59 K61 T91 ? 0003723,0005198,0006417,0019028,0039617,0042802,1904972 Kd=18nM P03612 11720290 2 ~ 18 ASNFTQFVLVDNGGTGDVTVAPSNFANGVAEWISSNSRSQAYKVTCSVRQSSAQNRKYTIKVEVPKVATQTVGGVELPVAAWRSYLNMELTIPIFATNSDCELIVKAMQGLLKDGNPIPSAIAANSGIY