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 TATGGCACTGGTAGAATTCACT TGATTCTTCAGTCAGCCATACA CCACGTGCCCGTTCACGGTCTATGGCACTGGTAGAATTCACTGATCGTAGACACCAGTGATTCTTCAGTCAGCCATACACCGTGGCGGGAAACTGATCATC 0 4 5' arm Branchiostoma_floridae mirbase mir-183 4e-50 pma-mir-183 0.00000008 -43.1 .((....(((((.((((((.(((((((((((.(((((.(((((...........)))))))))))))))..)))))).)))))))))))....))...... (-43.10)