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 AGGCAAGATGCTGGCATAGCT CTATGCCAACATATTGCCATCT GGAGAGGAGGCAAGATGCTGGCATAGCTGTTGAACTGAGAACCTGCTATGCCAACATATTGCCATCT 3 1 5' arm Equus_caballus mirbase mir-31 7e-29 mmu-mir-31 2e-32 -28.4 .....((((((((.(((.(((((((((.(((........)))..))))))))).))).))))).))) (-28.40)