6uc7 B 67 1.798 RF00167 URS000080DDA1_1423 32414072 0009113 1423 ggacauauaaucgcguggauauggcacgcaaguuucuaccgggcaccguaaauguccgacuaugucc <<<<<<<...<.<<<<<.....<<>>>>>.>........<<<<<<>>.....>>>>>>..>>>>>>> ((((((((..(.(((((.....[[))))).)[.....)]((((((]].....))))))..))))))) Structure of guanine riboswitch bound to N2-acetyl guanine; guanine riboswitch