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 TCCTCCATGCATAGGGGGAGG TCCTCCATGCATAGGGGGAGG GTGGTGGAGCTCCTCCATGCATAGGGGGAGGCGGTGGCGGCGGTGGAGCTCCTCCATGCATAGGGGGAGGCGGTGGCGGC 1 2 5' arm Arabidopsis_thaliana pmrd 100 100 -37.9 ((.((.(.((((((((((((((.(((((((.(..(.((....)).).)))))))))))))).)))))).))..).)).)) (-37.90)