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 TGAGGTAGGAGGTTGTATAGTT CTATACGGCCTCCTAGCTTTCC CCCGGGCTGAGGTAGGAGGTTGTATAGTTGAGGAGGACACCCACGGAGATCACTATACGGCCTCCTAGCTTTCCCCAGG 3 0 5' arm Equus_caballus mirbase let-7 9.0E-35 ssc-let-7e 5.0E-39 -37.9 ((.(((..(((.((((((((((((((((.((.(.((....)).).....)))))))))))))))))).)))..))).)) (-37.90)