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 TATATAACTGTTCTATTCACAG GTGAGTAGGACAATTCATATTGAA GTGAGTAGGACAATTCATATTGAAAATATTGTCTTTTATATAACTGTTCTATTCACAG 3 2 3' arm Caenorhabditis_elegans mirbase 100 cel-mir-4922-1 0.000002 -16.3 ((((((((((((.((.((((.((((........)))))))))).)))))))))))).. (-16.30)