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 TGAGGTAGGAGGTTGTATAGT TATACGGCCTCCTAGCTTTCC CCCGGGCTGAGGTAGGAGGTTGTATAGTTGAGGAGGACACCCAAGGAGATCACTATACGGCCTCCTAGCTTTCCCCAGG 2 0 5' arm Bos_taurus mirbase let-7 4e-37 mml-let-7e 1e-39 -37.8 ((.(((..(((.((((((((((((((((.((...((....)).......)))))))))))))))))).)))..))).)) (-37.80)