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 TGGAAGACTAGTGATTTTGTTGT AACAAGTCACAGTCTACCTCA TGTGGAAGACTAGTGATTTTGTTGTTGTTTCTTCTGCTTTCTGACAACAAGTCACAGTCTACCTCAGCGAGCGGGCCCT 2 2 5' arm Danio_rerio mirbase mir-7 1e-37 xtr-mir-7-2 0.000000004 -22.29 ((.((.(((((.(((((((.((((((................)))))))))))))))))).)).))............. (-22.29)