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 ACTGCAGTGAAGGCACTTGTAG CAAAGTGCTTACAGTGCAGGTAG CAAAGTGCTTACAGTGCAGGTAGTGATATGTGCATCTACTGCAGTGAAGGCACTTGTAG 6 1 3' arm Canis_familiaris mirbase mir-17 1e-20 age-mir-17 8e-28 -22.7 ..((((((((.((.(((((.(((((.......)).)))))))).)).)))))))).... (-22.70)