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 ATCCAAATGTAGACAAAGCA CACATCA TTCCCTTTCACATCAAGCAATTGCAAATGATCCAAATGTAGACAAAGCAA 18 0 3' arm Solanum_lycopersicum pmrd 100 ath-MIR158b 0.0005 0 ...........((((.((....))...))))................... ( -1.70)