3la5 A 71 1.7 RF00167 URS000080E171_1423 20133756 0009113 1423 ggcuucauauaauccgaaugauaugguuucggagcuuccaccaagagccuuaaacucuugacuauggaguc <<<<<<<<<...<<<<<<......<<.>>>>>>........<<<<<<>>.....>>>>>>..>>>>>>>>> ((((.(((((..((((((......[[.))))))[.....)]((((((]].....))))))..)))).)))) X-ray crystal structure of mc6 RNA Riboswitch bound to azacytosine; Adenosine RIboswitch