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 AGTAGTAGTTGAACTATCTTCT GGGGTAGTTTCTCCACTACTTC CTCCCTCTGCGATGGGGGTAGTTTCTCCACTACTTCAGTGCTGTGGTGGGTGAAGTAGTAGTTGAACTATCTTCTTCACAGTGGCTC 4 0 3' arm Branchiostoma_floridae mirbase 100 100 -33.6 ...((.(((.((.(((((((((((..(.(((((((((.(.(......).)))))))))).)..))))))))))).)).))).))... (-33.60)