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 CTCGGTGGAAGATCGTCCCT GGATCGCCGGTCTACCGAGCA AAGACGATAAGGGATCGCCGGTCTACCGAGCAATATCACCCGCTCGGTGGAAGATCGTCCCTTAATCTTCAC 4 1 3' arm Bombyx_mori mirbase mir-2774 2e-17 bmo-mir-2774a-2 2e-19 -31.4 ..((.(((((((((.((....((((((((((..........))))))))))....)))))))).))).)).. (-31.40)