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 AGCAGCATAGTGCAATGGTGTCA AGCCATTGCATTTGTCTGCCTT TTTGCCCCTGAGCCATTGCATTTGTCTGCCTTGTCTGTGCATTGAGATGTCCAAAGCAGCATAGTGCAATGGTGTCAGGGTC 1 3 3' arm Branchiostoma_floridae mirbase 100 100 -34.6 .....(((((((((((((((((((.((((.(((.....((((....)))).))).)))))).))))))))))).)))))).. (-34.60)