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 TCGTACCGTGAGTAATAATGC ATTATTACTTTTGGTACGCGC GGCTGTGCATTATTACTTTTGGTACGCGCTGTGTCACATCAAACTCGTACCGTGAGTAATAATGCGCAG 2 0 3' arm Xenopus_tropicalis mirbase mir-126 1e-24 mdo-mir-126 6e-26 -33.4 ..((((((((((((((((.(((((((.(...((......))..).))))))).)))))))))))))))) (-33.40)