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 AGCTCGGTCTGAGGCCCCTCAGT TGAGGGGCAGAGAGCGAGACTTT GAAGTTAGGCTGAGGGGCAGAGAGCGAGACTTTTCTATTTTCCAAAAGCTCGGTCTGAGGCCCCTCAGTCTTGCTTCCT 3 2 3' arm Rattus_norvegicus mirbase mir-423 2e-38 mml-mir-423 1e-39 -43.7 (((((.((((((((((((..(((.((((.(((((.........))))))))).)))...)))))))))))).))))).. (-43.70)