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ChIP at the PU.1 gene locus was carried out for the H3K9Me3, H3K27Me3, and H3K9Ac histone tail modifications in OCI-M2 (left) and K562 (right) cells. Grey bars: control cells, dark bars: 48hrs after GATA-1 transgene transfection. Data are relative to control antibody IPs (Y axis). T-test significance: p<0.05 (star). Amplicon positions are shown on the X axis.
