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 TAACGTGTCTCCTATTTTTAGGGA TCCTAGTTTGAGGGACTGATATC AGTCTCCTAGTTTGAGGGACTGATATCATTTTTAACGTGTCTCCTATTTTTAGGGACC 5 3 3' arm Populus_trichocarpa pmrd MIR478 0.000000000000003 ptc-MIR478r 3e-27 -15.1 .(((.(((((....((((((((.((.......)).)).))).)))....)))))))). (-15.10)