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 TAGCAGCGGGAACAGTACTG GTATTGTTTCTGCTGCCCGG TAGCAGCGGGAACAGTACTGCAGTGGGCAATCGGTGTTCTGGAGTATTGTTTCTGCTGCCCGG 3 0 5' arm Canis_familiaris mirbase mir-503 6e-29 eca-mir-503 5e-23 -33.9 ..(((((((((((((((((.(((.(.((.....)).).))).))))))))))))))))).... (-33.90)