4lx5	A	71	2.13	RF00167	URS000080E373_672	24971878			0009113		672	ggcuucauauaauccgaaugauaugguuucggagcuuccaccaagagccuuaaacucuugauuaugaaguc	<<<<<<<<<...<<<<<<......<<.>>>>>>........<<<<<<>>.....>>>>>>..>>>>>>>>>	((((((((((..((((((......[[.))))))[.....)]((((((]].....))))))..)))))))))	X-ray crystal structure of the M6"" riboswitch aptamer bound to pyrimido[4,5-d]pyrimidine-2,4-diamine (PPDA); Mutated adenine riboswitch aptamer