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 ACCCGAGCGGTCTGAGCAAACT TTTGTTCGCCCCGGCTCGTGTCG CAGCAAGGCGACCCGAGCGGTCTGAGCAAACTGTGACAATATCTAGTTTGTTCGCCCCGGCTCGTGTCGCCAAGCGTCA 3 1 5' arm Bombyx_mori mirbase 100 100 -40.1 ..((..((((((.(((((((..(((((((((((.((.....)))))))))))))..)).))))).))))))..)).... (-40.10)