2g9c A 67 1.7 RF00167 URS000080DFC3_1423 17076468 0009113 1423 ggacauauaaucgcguggauauggcacgcaaguuucuaccgggcaccguaaauguccgauuaugucc <<<<<<<...<.<<<<<.....<<>>>>>.>........<<<<<<>>.....>>>>>>..>>>>>>> ((((((((..(.(((((.....[[))))).)[.....)]((((((]].....))))))..))))))) Modified pyrimidines Specifically bind the purine riboswitch; guanine riboswitch