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 AACATTCAACGCTGTCGGTGAGT CATCGACCGTTGACTGTACC TTGGTGAACATTCAACGCTGTCGGTGAGTTTTGCGCTTCTGTAACAAACCATCGACCGTTGACTGTACCCTGAGGGTGG 2 3 5' arm Danio_rerio mirbase mir-181 6e-36 pma-mir-181a 0.00000000002 -24.1 .......(((.((((((..(((((((.((((((((....))))..))))))))))))))))).)))((((...)))).. (-24.10)