8xzp A 53 2.18 RF02977 38769061 0010468 41312 ngguguguaccguucaacucgucccagcuucgacugggacuacgggagcgccu <<<<<<...<<<<.......<<<<<<<......>>>>>>>.>>>>..>>>>>> ((((((...((((.......((((((((...).))))))).))))..)))))) Crystal structure of folE riboswitch with 8-CH3 Guanine; RNA (53-MER)