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 TGAGAACTGAATTCCAAGGGTG CCCACGGAGTTCAGTTCTTAAG GCTCTTGGCTTTGAGAACTGAATTCCAAGGGTGTCTGCTTTATATTCAGCCCACGGAGTTCAGTTCTTAAGTTTGGATGC 4 0 5' arm Danio_rerio mirbase mir-146 6e-39 dre-mir-146b-1 4e-40 -33.39 (((((..((((.((((((((((((((..((((................))))..))))))))))))))))))..))).)) (-33.39)