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 ATCGTAGAGGAAAATCCACGT GTAGATTCTCCTTCTATGAGTA TAAAAGGTAGATTCTCCTTCTATGAGTACAATATTAATGACTAATCGTAGAGGAAAATCCACGTTTTC 4 1 3' arm Mus_musculus mirbase mir-154 3e-22 rno-mir-376a 4e-33 -16.21 .((((.((.((((.((((.((((((...................)))))))))).)))).)).)))). (-16.21)