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 TGGAAGACTAGTGATTTTGTTGT AACAAGTCCCAGTCTGCCG TGGAAGACTAGTGATTTTGTTGTTGTCTTGCTGCGCCCAACAACAAGTCCCAGTCTGCCG 3 2 5' arm Equus_caballus mirbase mir-7 5e-20 mml-mir-7-2 3e-21 -19.5 .((.(((((.(.(((((.(((((((....((...)).))))))))))))).))))).)). (-19.50)