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 ATGGGCTGATCTCGGCCCAACAT GTGGGCTAGGCCCGGCCCGGCT ATATGTGGGCTAGGCCCGGCCCGGCTAACTGGGTCGAGCTCAGACCCAGAAAAGGATGGGCTGATCTCGGCCCAACATGT 5 1 3' arm Populus_trichocarpa pmrd 100 100 -41.9 ((((((((((..((..(((((((.((..(((((((.......)))))))...))..)))))))..))..)))).)))))) (-41.90)