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 TCACTGGGTTCAGTTTGTCCAATG TTAGATGAACTCGACTCGGCTGATG AAAACGCTAATCTGTTAGATGAACTCGACTCGGCTGATGATAAAAAAAACATCACTGGGTTCAGTTTGTCCAATGGTTTTAGCTAAAA 4 1 3' arm Tribolium_castaneum mirbase 100 tca-mir-309a 1e-30 -29.9 .....(((((.(((((.((..((((.(((((((.(((((..........)))))))))))).))))..)).)))))..)))))..... (-29.90)