Ultraconserved Elements in the Olig2 Promoter
Figure 1
A) Frequency distribution of potential transcription factor binding sites in 2 Kb windows across the Olig2 upstream region.
Sequences upstream of Olig2 were scanned using Patser [31], [32] for any potential binding site for any of the mammalian transcription factors in TRANSFAC [33]. Total lengths of potential TFBS were summed up for each 2 kb window. B) Frequency distribution of percent identity in the Olig2 promoter. The average percent identity was calculated for every 2 kb window spanning the multiple alignments of sixteen species in the regions upstream of Olig2.