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 TAGCCAAGGACGACTTGCCCA GGCAAGCACCTTGGCTAGC CTTGTTTGGTAGCCAAGGACGACTTGCCCACCACCATCTTAGTTGGGTCCAATATATTACTGGGCACCTTCCATTTGGTTTTGGGCAAGCACCTTGGCTAGCTGACA 1 2 5' arm Populus_trichocarpa mirbase MIR169_2 7e-55 ptc-MIR169ab 9e-54 -46.96 ..((((.(.(((((((((..(.((((((((..((((........(((((((.........))))).)).......))))..))))))))).))))))))).).)))) (-46.96)