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 TGTGCCACTCACTTTCTTGCAG GTAAGTTGATGAGTTCACACATA GTAAGTTGATGAGTTCACACATAAATTTTGGATATATATGTGCCACTCACTTTCTTGCAG 7 1 3' arm Caenorhabditis_elegans mirbase 100 100 -15.1 (((((..(.(((((...((((((.((.......)).))))))..))))).)..))))).. (-15.10)