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 AAGCACCACGAGAAGCTGCAGA CGCAGTTTGTTGTGATGTGCTCCA TTTTGAAAAAGACCACCGTCCGCAGTTTGTTGTGATGTGCTCCAAGCAATCATGAGTCTGAAGCACCACGAGAAGCTGCAGATGGAGGTTCTGATTT 3 2 3' arm Caenorhabditis_elegans mirbase mir-49 6e-49 crm-mir-49 0.000000000000005 -38.5 ..........((((.(((((.(((((((.(((((..(((((.((..(........)..)).)))))))))).))))))).))))).))))....... (-38.50)