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 CTCGCCGGGGCTGCGTGCCG GGTGCGCATCCCCGTCGAGCG CCGAGCCTTGCTCGCCGGGGCTGCGTGCCGCCATAGCTGGTGCGCATCCCCGTCGAGCGTTGCTCGACG 4 1 5' arm Oryza_sativa mirbase 100 osa-MIR531 3e-31 -46.7 .(((((..((((((.(((((.((((..((((....)).))..)))).))))).))))))..)))))... (-46.70)