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 GAAGCTCGTCTCTACAGGTATCT CTACCCTGTAGATCCGGGCTTTTG GGCACATCCGTGATCTACCCTGTAGATCCGGGCTTTTGTAGAATTTTTAGATCAGAAGCTCGTCTCTACAGGTATCTTACGGATGGAA 4 1 3' arm Tribolium_castaneum mirbase 100 tca-mir-993 7e-45 -41.04 ....(((((((((..((((.((((((..((((((((((..............))))))))))..))))))))))..)))))))))... (-41.04)