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 TATTCGGAAATGTAGGGTGG ATTCTGTGTTTCGAATG TATTCGGAAATGTAGGGTGGACGTTATCATAATTCGACCATTCTGTGTTTCGAATG 2 1 5' arm Ciona_intestinalis mirbase 100 cin-mir-4055 5e-26 -18.2 ((((((.(((..((((((((.((...........)).))))))))..))))))))) (-18.20)