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 CAGGGCTGGCAGTGACATGGGT CCATTTCCCTGCCATTCCCTTGGC CTGGTCCATTTCCCTGCCATTCCCTTGGCTTCAATTTACTCCCAGGGCTGGCAGTGACATGGGTCAA 5 2 3' arm Homo_sapiens mirbase 100 hsa-mir-4446 2e-32 -28.22 .((..((((.((.((((((...((((((.............)))))).)))))).)).))))..)). (-28.22)