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 CAAGGAATCACTAATCATCCCAC GTGGAAGACTAGTGATTTTGTTGTT TGGTGTTGTGTGGAAGACTAGTGATTTTGTTGTTCTAATTTTTACGTAACAAGGAATCACTAATCATCCCACAAAGCC 2 2 3' arm Tribolium_castaneum mirbase mir-7 1e-37 tca-mir-7 5e-39 -26.5 .(((.(((((.(((.((.((((((((((.((((((..........).))))))))))))))).)).)))))))).))) (-26.50)