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 TGTCATGGAGTTGCTCTCTTT AGAGAGCTATCCGTCGACAGT TCGAAAATGAAGAGAGCTATCCGTCGACAGTATATAATTTACACTGTCATGGAGTTGCTCTCTTTAT 2 2 3' arm Tribolium_castaneum mirbase mir-281 3e-31 tca-mir-281 2e-32 -30.3 ......(((((((((((..(((((.((((((.((.....)).)))))))))))...))))))))))) (-30.30)