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 ATCCTTGCTATCTGGGTGCTA GCACCTGGGCAAGGATTC TGCTCCCCCTCTCTAATCCTTGCTATCTGGGTGCTAGTGCTGTCTCAATGCAATGCACCTGGGCAAGGATTCAGAGAGGG 4 3 5' arm Equus_caballus mirbase mir-500 4e-34 eca-mir-502 4e-40 -43.6 ......(((((((((((((((((...(..(((((...(((.........)))..)))))..)))))))))).)))))))) (-43.60)