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 TACCCTGTAGATCCGAATTTGTG CAAATTCGTTTCTGCAGGTATA CTATATGTACCCTGTAGATCCGAATTTGTGTGAGGTACCCAAGTCACAAATTCGTTTCTGCAGGTATAATGTAGCC 2 1 5' arm Branchiostoma_floridae mirbase mir-10 6e-36 xtr-mir-10a 0.00000000006 -31.9 (((((((((((.((((((..((((((((((...((...))....))))))))))..))))))))))).)))))).. (-31.90)