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 TCAGTGCATTACAGAACTTTGT AAAGTTCTGTGATACACTCCGACT CTTTCCAAGTAAAGTTCTGTGATACACTCCGACTCTGAATGTTTGCAGTCAGTGCATTACAGAACTTTGTTTTGGGAGT 4 2 3' arm Danio_rerio mirbase mir-148 2e-38 fru-mir-148 4e-18 -28.7 .((((((((..((((((((((((.((((..(((((.........).)))))))).))))))))))))...)))))))). (-28.70)