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 AACTGTTTGCAGAGGAAACTGA AGTCTCATCTGCAAAGAAGTAA GCTAAGCACTTACAACTGTTTGCAGAGGAAACTGAGACTTTGTAACTATGTCTCAGTCTCATCTGCAAAGAAGTAAGTGCTTTGC 6 0 5' arm Homo_sapiens mirbase mir-452 2e-39 mml-mir-452 4e-43 -40.9 ((.((((((((((...(.((((((((.((.((((((((...........)))))))).)).)))))))).).)))))))))).)) (-40.90)