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 CTGGACTTGGAGTCAGAAGA CTGGGCTATCCCAGTCCAGGC TGTCCTGGGCTATCCCAGTCCAGGCAGTACCCTCAGGAGGCAGGTACGATGGATAGAGAGGGAACCCTGGACTTGGAGTCAGAAGACCTGAG 2 5 3' arm Mus_musculus mirbase 100 rno-mir-3557 0.00002 -31.4 .(((((((....(((.((((((((..((.(((((...(..((.......))..)...))))).)))))))))).))).))))..)))..... (-31.40)