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 AAGCAGCAGTATGCAATGGTG ACTGTTGCATCTTGCTGCCTTTA CCCTCATCCATGTTTCAACTGTTGCATCTTGCTGCCTTTAGAACCTTCCATCCATAAAGCAGCAGTATGCAATGGTGAAAAC 1 2 3' arm Branchiostoma_floridae mirbase 100 100 -25.64 ............(((((.(((((((((.(((((((.((((..............))))))))))).)))))))))))))).. (-25.64)