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 TGATTGTCCAAACGCAATTCT AACTGCGCTGGACATCAGC CCAGTGCTGATTGTCCAAACGCAATTCTTGTTGACCTTTGAACCAAGAACTGCGCTGGACATCAGCAATTGACGCTGCCTAC 2 2 5' arm Branchiostoma_floridae mirbase mir-219 9e-32 dre-mir-219-3 0.000000004 -29.1 .((((((((((.(((((..((((.((((((((........)).)))))).)))).))))))))))).))))........... (-29.10)