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 CCTACTCCTCCCATTCC AGATGGGAGAGTATGCA GGAGATGGGAGAGTATGCAAGAAGGAAAAAATCATGATTTAATATCCCTTCTTGCCTACTCCTCCCATTCC 1 2 3' arm Populus_trichocarpa micropc 100 ptc-MIR482 1e-27 -31.6 ((((.((((((((((.(((((((((.....................))))))))).)))).)))))))))) (-31.60)