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 TGCCAAAGGAGATTTGCCCCG GGGCGAATACTCCTATGGCAGA GGTTGGATTACTGGGCGAATACTCCTATGGCAGATCGCATTGGCTAGATATGCAAGTAAAATGCTTCTCTGCCAAAGGAGATTTGCCCCGCAATTCATCC 2 1 3' arm Arabidopsis_thaliana mirbase mir-399 9e-51 aly-MIR399d 2e-42 -45.4 ((.((((((.(.((((((((.(((((.(((((((..(((((.((.......))......)))))...))))))).))))))))))))).).)))))).)) (-45.40)