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 CGAGGTTTCACGTTTTCTAGGC CTAGGAAATGAGAAAACTCGGC CGAGGTTTCACGTTTTCTAGGCCACGCCGCAAATAGCCAGCTTGTGGCCTAGGAAATGAGAAAACTCGGC 2 0 5' arm Caenorhabditis_elegans mirbase 100 cel-mir-1830 3e-34 -35.8 ((((.((((.(((((((((((((((((.((.....))..))..))))))))))))))).)))).)))).. (-35.80)