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 GTGCATTGTAGTTGCATTGCA CAATGTTTCCACAGTGCATCA CCGTGGTGCATTGTAGTTGCATTGCATGTTCTGGCAGTACCTGTGCAATGTTTCCACAGTGCATCACGG 3 0 5' arm Rattus_norvegicus mirbase mir-33 7e-29 mmu-mir-33 4e-30 -35.8 ((((((((((((((.(..(((((((((.....((.....)).)))))))))..).)))))))))))))) (-35.80)