mature_miRNA miRNA* pre-miRNA EST_contig mismatches bulges arm species source_database RFAM_best_hit RFAM_lowest_evalue miRBase_best_hit miRBase_lowest_evalue folding_energy secondary_structure CAACCTGGAGGACTCCATGCTG CCATGGATCTCCAGGTGGGT TGGAAAGTTCATTGTTCGACACCATGGATCTCCAGGTGGGTCACGTTTAGATATACACCAACCTGGAGGACTCCATGCTGTTGA 2 2 3' arm Mus_musculus mirbase mir-490 3e-41 mmu-mir-490 2e-42 -32.3 ...............((((((.(((((((((((((((.(((...((........))))).)))))))))..)))))).)))))) (-32.30)