7e9e A 33 1.57 URS0000E60BA5_119072 34615874 119072 cugggucgcagunnccccaguuaacaaaacaag <<<<<...(......>>>>>............) (((((...[.[....))))).........]..] Crystal structure of a class I PreQ1 riboswitch aptamer (ab13-14) complexed with a cognate ligand-derived photoaffinity probe; 33-mer RNA 7e9i A 33 2.8 URS000080E32E_119072 34615874 119072 cugggucgcaguaaccccaguuaacaaaacaag <<<<<...(......>>>>>............) (((((...[.[....))))).........]..] Crystal structure of a class I PreQ1 riboswitch aptamer (wild-type) complexed with a cognate ligand-derived photoaffinity probe; 33-mer RNA