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 TAGCCAGACCTGATCTCCCTGC AGGGAGATCACCTCAGGCGTACA TCTCTGGTGTAGGGAGATCACCTCAGGCGTACAGTCTTGTCATGTAGCATGTAGCCAGACCTGATCTCCCTGCAGCGGCTG 3 1 3' arm Branchiostoma_floridae mirbase 100 100 -37.1 ...(((.(((((((((((((..((.(((.((((..((........))..))))))).))..))))))))))))).)))... (-37.10)