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 AGCCAAGGATGACTTGCCGA GGCAGGTTGTTCTTGGCT AGCCAAGGATGACTTGCCGACGACTCGCTTTTGCTTTTGCTTCCATCAATATAGGCATAATCAAGAAGAGATGAATCCGTTGGCAGGTTGTTCTTGGCT 2 0 5' arm Populus_tremula micropc MIR169_2 3e-29 ptc-MIR169b 2e-30 -42.7 (((((((((..(((((((((((..((((((((.(((.(((((..........))))).....)))))))).)))...)))))))))))..))))))))) (-42.70)