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 AATTGCACTAGAGTGATTTGTT CAAATCACTTCAGTGCAGTTCT TGGTAGAATTGCACTAGAGTGATTTGTTGATTTTTGGACATCAAATCACTTCAGTGCAGTTCTCTCACGGCTTGTACAAGTC 3 0 5' arm Branchiostoma_floridae mirbase 100 100 -33.5 ((..(((((((((((..(((((((((.((.........)).)))))))))..)))))))))))..)).(((((....))))) (-33.50)