Figure 6From: ChIP-chip versus ChIP-seq: Lessons for experimental design and data analysisVariability due to peak calling algorithms. We compared the average proportion of overlapping peaks identified by two ChIP-seq peak callers (red) and two ChIP-chip peak callers (blue) for the ChIP-seq and ChIP-chip profiles, respectively. Interestingly, the variation in peak identification concordance due to the use of different algorithms can be as large as technological differences, which is especially clear in the comparison of CBP and H3K27Me3 profiles.Back to article page