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 GAGGTCGGGGATTGCAAGGAG CCTCGCAATCCCCCAGCTC GAGGTCGGGGATTGCAAGGAGAGCCAACGCATGGGCACGCGCACGGCAATTTAATGCCACGCCCACGCCAGCGTATAGCTCTCCTCGCAATCCCCCAGCTC 3 0 5' arm Populus_euphratica mirbase 100 100 -54.8 (((.(.(((((((((.((((((((..((((...(((..(((...((((......)))).)))....))).))))...)))))))).))))))))).).))) (-54.80)