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 AGGCAAGATGTTGGCATAGCTGA AGCTTCGCCACATTCTGCCACG AGGTCCCGTCAGAGCTAGGCAAGATGTTGGCATAGCTGAATGATCGCTATAACAACTATCAGCTTCGCCACATTCTGCCACGCACTGATGTGAGGACCT 5 1 5' arm Caenorhabditis_elegans mirbase mir-31 2e-42 crm-mir-72 0.00000000002 -43.21 ((((((((((((.((..((((..((((.(((..((((((...................))))))..)))))))..))))..)).))))))...)))))) (-43.21)