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
TGGCAGGGCAATTCTCCCTTG AAGGAGGATAAAGCCCTGTTATT TCAAGTAACTGTGGAATCGAATGGCAGGGCAATTCTCCCTTGGCAAAACAGAAATATGCAGGCATTTATTTCCATGTTCTGTTTGCCAAAGGAGGATAAAGCCCTGTTATTCTTTAGCCATAAATGATA TCCAGTTGATCGGAAAGTGCTAGCCCTCATCGATTCATACTGCAATATTTTTCTGACATTTCTGCTAAAAAGTGAAATAAAAGATTATTTTTATGCAAGGGAGATAAAAAATCTGACCCAAAAGTAATTGCAAGAGATATCATATCATGATGATATTCATGAAGAACAAGAGACGCATTCAAGTAACTGTGGAATCGAATGGCAGGGCAATTCTCCCTTGGCAAAACAGAAATATGCAGGCATTTATTTCCATGTTCTGTTTGCCAAAGGAGGATAAAGCCCTGTTATTCTTTAGCCATAAATGATAGATGCATTGCCTAGCTCCATCATCAGCCAGCGAGCTATAGCTAGCATTGCTCGAGTTCC 2 2 5' arm Populus_tremula mirnest mir-399 2e-49 ptc-MIR399f 4e-50 -46 .........(((((....((((((((((((.(((((((.((((((((.(((((.((((.(((......))).))))))))))))))))).)))))))...)))))))))))).....)))))....... (-46)