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 CTCGGTAGAAGATCTTCCCTTT TCGGACCGTCGGTCTAGCGAGCA GAGCAACAACATTCGGACCGTCGGTCTAGCGAGCAATTACACCCGCTCGGTAGAAGATCTTCCCTTTGTCGTAAACC 7 1 3' arm Bombyx_mori mirbase mir-2774 6e-36 bmo-mir-2774b-1 3e-22 -21.8 .....((.(((...(((..(((..((((.(((((..........))))).)))).)))..)))...))).))..... (-21.80)