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 GGCGACACTCGATAGGGAT CCCACTTCGAGAGCCCGCCTT TATAACCCACTTCGAGAGCCCGCCTTGGGACAGACTTCGGCGACACTCGATAGGGATAAA 6 2 3' arm Tribolium_castaneum mirbase 100 tca-mir-3899 2e-28 -20.1 .....(((...(((((.(..((((..((......))..)))).).)))))..)))..... (-20.10)