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 GCTCTTCCTCTTCCTCTTCCT AAAGAAGAAGCGAAGGCTG CTTCTTCCACAGCTCTTCCTCTTCCTCTTCCTCTTCCAGGTTAAATCTTTTGTAGAAAATGAGAGCTTCCAGTACTTCATTTCACTTCTTAGAATCCACTTCTCTCTGTAGAGCACCTGTCGACATTTCCCGGTCTCAACTTTCTATTCCTAGGAAGCTCTTTTTTTGCCGAGCAAATTTTGATGGATCCTTCAGCTCGAGAGTGAGAGTGGTGCCAGCAACTCTGGTGGCAGCAGAAAAAGAAGAAGCGAAGGCTGTCCTAAAC GTTCTTCTTCCACAGCTCTTCCTCTTCCTCTTCCTCTTCCAGGTTAAATCTTTTGTAGAAAATGAGAGCTTCCAGTACTTCATTTCACTTCTTAGAATCCACTTCTCTCTGTAGAGCACCTGTCGACATTTCCCGGTCTCAACTTTCTATTCCTAGGAAGCTCTTTTTTTGCCGAGCAAATTTTGATGGATCCTTCAGCTCGAGAGTGAGAGTGGTGCCAGCAACTCTGGTGGCAGCAGAAAAAGAAGAAGCGAAGGCTGTCCTAAACTTGTTCTTGAAGAAACAAGGTTTGAGCAATGCAGTTGCAGCAAGAACTATCAACAAGTCGGACATTTTCATTGACCACCTTGTCTCAAGGCTTCATTCAGTTCATAAATCTCGGTATCTAGTAGGGCGAGAGCTAACAACTCTTGAGATCAGGGATGCTCTTGTTCCATACCTTGAATCTCTCCGTGAAGAGCATGGAAGCATCTTGGTAGATTTATTGGAAAACTTTCCAAACCCACCTGGTAAAGAAAAACCAATCGGGCATGTTTCTCCATCCCATTTGACCCCCGAGTCCAAGAAGCAAAGGGCCGTGTCTAGAGTGAGGGAGACAGGCCCTGCTGGGCAGCTTCCT 4 2 5' arm Populus_nigra mirnest 7SK 0.000004 mtr-MIR2673b 0.00000006 -53.1 ........(((((.((((..((((.((((..(((...((((...))))(((..((((((((((.(((...)))..))))))....))))..))).((((((..((((...((((..(((((((.((((..((((.....(((((((....)))))))..........))))...)))).)))))))........)))).))))...))))))(((((.((....)).)))))..)))..)))).)))).)))))))))....... (-53.1)