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 CCTTGTAGGAGTAAAGGGAA CACTTTGCCACTGCAGGT CCTTGTAGGAGTAAAGGGAAACGTTTACAGTTTCACTTTGCCACTGCAGGT 4 0 5' arm Ciona_intestinalis mirbase 100 cin-mir-4078 4e-23 -21.7 .(((((((..((((((.(((((.......))))).))))))..))))))). (-21.70)