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A, High enrichment of the first intron of the Pcp4 gene compared to input (mm9, chr16∶96,717,332-96,718,404) in Hoxa2 ChIP-seq. Evolutionary Conserved Regions (ECRs) plot generated by the ECR Browser, comparing the genomic region bound by Hoxa2 between human, chimpanzee, and cow [29]. B, Conventional ChIP on IIBA chromatin confirms enrichment of Hoxa2 to Pcp4. IP10 is a negative control gene. IgG is a non-specific negative control antibody.
