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 GTCCAGTTTTCCCAGGAATCCCT GGATTCCAGGAATAACTGTCCA TGCGTGGGCATGGTCCAGTTTTCCCAGGAATCCCTGTGCCCTTTTCCCGGGATTCCAGGAATAACTGTCCAAGCACACGTG 3 3 5' arm Petromyzon_marinus mirbase mir-145 0.00002 xtr-mir-145 0.0000009 -35.34 .(((((.((.(((..(((((((((..((((((((..............)))))))).)))).))))).))).)).))))). (-35.34)