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 TTATTGGTTCAAATCGCTCGCAG GTGAGTTTTTGAGCCAGGAATA GTGAGTTTTTGAGCCAGGAATATAGTTCTTATTATTGGTTCAAATCGCTCGCAG 4 1 3' arm Drosophila_melanogaster mirbase 100 dsi-mir-1011 7e-25 -21.6 ((((((.((((((((((.((((.......)))).))))))))))..)))))).. (-21.60)