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 AAAGGTGTTAAATGAAGACTTAG AGGACATCGTTTGAATGCTCGTC ACCACGGTGAAAAGGTGTTAAATGAAGACTTAGGGCTTCGAGCATATCGAAGAAAAACAGGACATCGTTTGAATGCTCGTCTAATGGA 9 0 5' arm Bombyx_mori mirbase mir-2780 2e-36 bmo-mir-2780b-1 2e-35 -18.8 .(((....((..((...((((((((.(.(((....((((((.....))))))......))).).))))))))...))..))...))). (-18.80)