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 CAAAGTGCTCACAGTGCAGGTA CTGTAGTGTGGGCACTTCCAG AGTACCAAAGTGCTCACAGTGCAGGTAGTTTTGGCAGCGCTCTACTGTAGTGTGGGCACTTCCAGTACT 3 1 5' arm Bos_taurus mirbase mir-17 2e-20 eca-mir-20b 4e-24 -30.6 (((((..(((((((((((.(((((.(((....(((...))))))))))).)))))))))))...))))) (-30.60)