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 TGCCAAAGGAGATTTGCCCTG GAGCAAATCTCTATTGGCAGA AATGATAGAGCAAATCTCTATTGGCAGAACGAAGTAGAAAGCTTGGACATGCATGCTTCTGGTTTGCCAAAGGAGATTTGCCCTGCCATT 2 0 3' arm Medicago_truncatula mirbase mir-399 2e-42 mtr-MIR399i 1e-43 -38.6 ((((.(((.((((((((((.((((((((..((((((....((........)).))))))...)))))))).)))))))))).))).)))) (-38.60)