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 CTAAGTACTAGTGCCGCAGGAG CCTGCTGCCCAAGTGCTTATTA TGTGCCGTCTACTTACCAAGTTCGCTTTCCTAAGTACTAGTGCCGCAGGAGTTAGGTTCGTGTCCGCAATACCTCCTGCTGCCCAAGTGCTTATTAAAGCGGCGAGTTGCCCAGCA 4 0 5' arm Drosophila_simulans mirbase mir-252 2e-55 dme-mir-252 1e-47 -36.5 .((...((..(((..((......(((((..((((((((.(.((.(((((((....(((((....)).)))..))))))).)).).))))))))..)))))))..))).))...)). (-36.50)