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 TGCAAATCTTTCGCGACTGTAGG TACAGAAGCATAGATTTCCACA ACTATGCATATTGCCGCCTACAGAAGCATAGATTTCCACAAACCATTCGAGGTGTTTGTGCAAATCTTTCGCGACTGTAGGCGGCGAACATGCAGTTTTT 5 1 3' arm Caenorhabditis_elegans mirbase mir-254 9e-51 100 -46.9 ....(((((.(((((((((((((..((..((((((.((((((((.......).))))))).))))))...))..)))))))))))))..)))))...... (-46.90)