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 AAACAAAAACAAGAAGAAGAA TTTTTTTTTTTTTTTGATCAA TTTTTTTTTTTTTTTTTTGATCAATCGAATACCAGATGTATTATTTCCCCATGAAGCAAAGAGCGAGGGTTATAAAAACAAAAACAAGAAGAAGAAAAAAATACT TTTTTTTTTTTTTTTTTTGATCAATCGAATACCAGATGTATTATTTCCCCATGAAGCAAAGAGCGAGGGTTATAAAAACAAAAACAAGAAGAAGAAAAAAATACTTGTTACACCCATTCACGATTGTTCCCCGAATGGTTCAAGCCCGTGTCTCATAAATCGAATCCTATTCAATCTGGAAAATAGGGATTACAAGATAACAAACACAAACAAGAAACTATCAGCAAAGAAACTGATTCAACACTCAAGTTCAGTGTTTCCCAAAATGACTGCCGGCGGCATGTTATGCCTTTGACTGCGATTCACCAGATGTGACAGCAGGTGCACCCTTTGGTTCCACACGTTTTGTCAGCACAGCCTCGAGTGTCTGGTAAAACTCTGCAGGGAGAGGACCAGGTATATGCCTTGGGACATGCTTAGGAATGGGAGCATCATTCTCTATAATTTCGCATTCATGGTCATCAGGAACACCCCAAGGATCCCACTCTGTTCACGGAACAAAATCATGTCAGTTGTTAAAGGGATTCTAATGCAAATGAAAGTTTAAAATCCATATGCATACTTCTTTTTCTCTTTTCTCTTTTTGCTTTCTTTTGCCGGAAAGATACTCCAAGAAAATCTTCCATGCATACAAATTGGTAAACTCTGTAGGCTTAGACTGATTTACATTAAAGTGGTAGAAAAACGAATCGTAAAAGCTCACAAAAATGTGC 4 0 3' arm Populus_trichocarpa mirnest 100 100 -15.6 ((((((((((((.((((((.((....)).(((.....)))((((..(((......((.....))..)))..))))...)))))).))))))))))))........ (-15.6)