8xzl A 53 2.13 RF02977 38769061 0010468 41312 ngguguguaccguucaacucgucccagcuucgacugggacuacgggagcgccu <<<<<<...<<<<.......<<<<<<<......>>>>>>>.>>>>..>>>>>> ((((((...((((.......((((((((...).))))))).))))..)))))) Crystal structure of folE riboswitch with DHF; RNA (53-MER)