CHD1 Antibody - ChIP-seq Grade

Figure 1. ChIP results obtained with the Diagenode antibody directed against CHD1
ChIP assays were performed using K562 cells, the Diagenode antibody against CHD1 (Cat. No. C15410334) and optimized PCR primer sets for qPCR. ChIP was performed with the “iDeal ChIP-seq” kit (Cat. No. C01010055), using sheared chromatin from 4 million cells. A titration consisting of 1 and 5 μg of antibody per ChIP experiment was analyzed. IgG (2 μg/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active ACTB and EIF4A2 genes, used as positive control, and for the inactive MYT1 gene, used as negative control. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis).

Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against CHD1
ChIP was performed on sheared chromatin from 4 million K562 cells using 1 μg of the Diagenode antibody against CHD1 (Cat. No. C15410334) as described above. The IP’d DNA was subsequently analysed on an Illumina HiSeq. Library preparation, cluster generation and sequencing were performed according to the manufacturer’s instructions. The 50 bp tags were aligned to the human genome using the BWA algorithm. Figure 2 shows the enrichment along the complete sequence and a 2.5 Mb region of the human X-chromosome (fig 2A and B), and in two genomic regions surrounding the ACTB and EIF4A2 positive control genes (fig 2C and D).

Figure 3. Western blot analysis using the Diagenode antibody directed against CHD1
Whole cell extracts from 293T cells were analysed by Western blot using the Diagenode antibody against CHD1 (Cat. No. C15410334) diluted 1:2,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left.

Figure 4. Immunoprecipitation analysis using the Diagenode antibody directed against CHD1
Immunoprecipitation was performed on whole cell extracts from HeLa cells using 3 μg of the Diagenode antibody against CHD1 (Cat. No. C15410334, lane 1). An equal amount of rabbit IgG was used as a negative control (lane 2). The immunoprecipitated CHD1 protein was detected by western blot with the CHD1 antibody diluted 1:200.