Figure 3From: Characterization of constitutive CTCF/cohesin loci: a possible role in establishing topological domains in mammalian genomes Boxplots of the number of species in which CTCF binding sites are found in the 46-way multiZ alignments for 23,709 cCTCF (green) and 23,709 randomly selected non-constitutive CTCF (blue) sites. Back to article page