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 CATACATTGCCTCCTAGGCTTG AGCCGAGGAGGAGGCCATGCGTGCG GAGCTCAACCGAGCCGAGGAGGAGGCCATGCGTGCGGTGGCTGTGGAGAGCCTGCATACATTGCCTCCTAGGCTTGGCGGAGCAGC 4 3 3' arm Oryza_sativa mirbase 100 osa-MIR2091 1e-43 -50.4 ..((((..(((((((....(((((((.(((..((((..((((......))))))))..))).))))))).)))))))..))))... (-50.40)