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 ACTATACAACCTCCTACCTCA AGCTAGGAGGCCGTATAGTGA CCCCTTCCAGTGCAGGGCGCAGCCTGGGGAAAGCTAGGAGGCCGTATAGTGATCTCCTCGGGTGTCTTCCTCAACTATACAACCTCCTACCTCAGCCCGGGGGGCGCGGCAGGTGGG 5 0 3' arm Rattus_norvegicus mirbase let-7 1e-34 mmu-let-7e 1e-47 -49.61 .(((..((..(((...((((..((((((...((.(((((((..(((((((((.......(((.....))))).)))))))..))))))).))...))))))..)))).))))).))) (-49.61)