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 AGCTGGTGTTGTGAATCAGGCCG GCTACTTCACAACACCAGG AGCTGGTGTTGTGAATCAGGCCGTTGCCAATCAGAGAACGGCTACTTCACAACACCAGG 4 1 5' arm Equus_caballus mirbase mir-138 1e-26 cfa-mir-138a 8e-28 -31.4 ..(((((((((((((...(((((((..(.....)..)))))))..))))))))))))). (-31.40)