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 GGGCATGTTCTCCTTTGGCAGG TTACAGGGCATGTTCTCCTTTGGCAGGTAGCCATATGCTATGATATGCATTGCAACCATACTCTTTGAGTGTGTAACCTGCCAAAGGAGATTTGCCCAGCAATT 4 1 3' arm Medicago_truncatula mirbase mir-399 4e-53 mtr-MIR399e 0.00000000008 -52 .....(((((...(((((((((((((((.((...((((........)))).))...(((((((...)))))))..)))))))))))))))..)))))....... (-52.00)