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 TGCCAAAGGAGATTTGCCCAG GGGTGAGTTCTCCATTGGCAGG TTACAGGGTGAGTTCTCCATTGGCAGGTAGCTAGTCACTATATGATATGCATTGCAATTCATCTCTTAGTGTGCAATCTGCCAAAGGAGATTTGCCCAGCGATT 5 1 3' arm Medicago_truncatula mirbase mir-399 1e-50 mtr-MIR399a 3e-47 -43.3 .....(((..(((.((((.(((((((((.((....(((((.((((..(((...)))..))))....))))).)).))))))))).)))))))..)))....... (-43.30)