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 TGCCAAAGGAGAGTTGCCCTG GGGCTTCTCTTTCTTGGCAGG TAGGGCTTCTCTTTCTTGGCAGGAAATTATCCTGACCATTCCATCATGTGTCTTGCCAAAGGAGAGTTGCCCTG 4 0 3' arm Medicago_truncatula pmrd mir-399 5e-33 pvu-MIR399a 0.0000000002 -32.4 ((((((..(((((..(((((((((...(((..((.......))..)))..)))))))))..)))))..)))))) (-32.40)