7els A 45 3.0 RF03054 URS00023119C1_137716 34125892 0002060 137716 gaguagaagcguucagcggccgaaaggccgcccggaaauugcucc <<<<.......<<<.<<<<<<....>>>>>>...>>>...>>>>. (((((....[.(((.((((((....))))))..])))..))))). Crystal structure of xanthine riboswitch with 8-azaxanthine; NMT1_8-azaxanthine (46-MER) 7els B 45 3.0 RF03054 URS00023119C1_137716 34125892 0002060 137716 gaguagaagcguucagcggccgaaaggccgcccggaaauugcucc <<<<.......<<<.<<<<<<....>>>>>>...>>>...>>>>. (((((....[.(((.((((((....))))))..])))..))))). Crystal structure of xanthine riboswitch with 8-azaxanthine; NMT1_8-azaxanthine (46-MER)