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 TATCGGTTATATATCAGTGG GCGAGCTTTGACAGGTGAT TACAACTCACAGCGAGCTTTGACAGGTGATGAGGGTGGTGAGGATGGCGATTATTATCGGTTATATATCAGTGGTAGGGAGCGG 6 1 3' arm Tribolium_castaneum mirbase 100 tca-mir-3886 2e-42 -17.8 .....(((((.((((....((((.((((((((..((.((....)).))..)))))))).))))....)).)).)).)))..... (-17.80)