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 TGAGATCATTAGTTGAAAGCCGA AGCTTTCGACATGATTCTGAAC ATGGACACTCGTTCGCTCAGCTTTCGACATGATTCTGAACAATCCGCAAGCCCATGTTGTTGAGATCATTAGTTGAAAGCCGAATGATCAGAGATATC 2 3 3' arm Caenorhabditis_elegans mirbase mir-80 1e-49 cel-mir-80 8e-51 -30.5 .......(((..(((.((.((((((((((((((.((.((((((.(....).....)))))).)))))))..))))))))).)).)))...)))..... (-30.50)