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 AACATTCATTGCTGTCGGTGGG CACTGATCAATGAATGCAAA CTAATGACTGCAATAAACATTCATTGCTGTCGGTGGGTTTCTAATAGACACAACTCACTGATCAATGAATGCAAACTGCGGTGCAA 2 2 5' arm Danio_rerio mirbase mir-181 0.000005 gga-mir-181b-2 2e-17 -31.3 ....((((((((.....(((((((((..(((((((((((((.....))...)))))))))))))))))))).....)))))).)). (-31.30)