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 TGGATAGTGAGTAAAGCGGTGA AATCTGTATTTCTCATCTTCCCAC CCTCTTAGTTGTGTTGGATAGTGAGTAAAGCGGTGATAGTTTCAACATCAATCTGTATTTCTCATCTTCCCACGATCGATTAAT 5 2 5' arm Schmidtea_mediterranea mirbase 100 100 -20.4 ....(..((((((..(((..(((((.((.((((((((.((....))))))..)))).)).)))))..)))))))))..)..... (-20.40)