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 CAGCCAAGGATGACTTGCCG GCAGGTTGTTCTTGGCT CAGCCAAGGATGACTTGCCGACGACTCGCTTTTGCTTTTGCTTCCATCAATATAGGCATAATCAAGAAGAGATGAATCCGTTGGCAGGTTGTTCTTGGCT 3 0 5' arm Populus_tremula micropc MIR169_2 7e-30 ptc-MIR169b 4e-31 -43 .(((((((((..(((((((((((..((((((((.(((.(((((..........))))).....)))))))).)))...)))))))))))..))))))))) (-43.00)