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 TGAGATCATCGTGAAAGCTAGT CGGTTTTCACCGTGATCTGAGA ATCAGTGCCATCGTGCCCAACAGTCGGTTTTCACCGTGATCTGAGAGCAATCCAAAAATGCTTTTCTGAGATCATCGTGAAAGCTAGTTGTTGGTCTACGGGCTTTTG 4 0 3' arm Caenorhabditis_elegans mirbase mir-81 7e-52 cbr-mir-81 6e-18 -43.6 ......(((..((((.(((((((..(((((((((.(((((((.((((((.........)))...))).))))))).)))))))))..)))))))..)))))))..... (-43.60)