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 AGGGTCTAGCCTGCCTGCC CAGTGATCGCAAGTTAGCGCCCTGT TGGCAGTGATCGCAAGTTAGCGCCCTGTAACAGCTTAAGCAACAGGGTCTAGCCTGCCTGCC 1 6 3' arm Ciona_intestinalis mirbase 100 cin-mir-4008b 1e-29 -26.5 .(((((.....(((.(((((.(((((((....((....)).)))))))))))).)))))))) (-26.50)