Figure 2From: Novel sequential ChIP and simplified basic ChIP protocols for promoter co-occupancy and target gene identification in human embryonic stem cellsIdentification of SOX2/NANOG/OCT3/4 target genes using the simplified, basic ChIP protocol. (A) NANOG expression by immunocytochemistry (red), DAPI (green) and merged images of undifferentiated BG01V human embryonic stem cells (magnification = 20×). (B) rtPCR data from SOX2/NANOG/OCT3/4 ChIP using primers to previously known target genes. (C) PCR results from the indicated ChIP assays with undifferentiated BG01V cells. (D) Densitometric analysis of ChIP data shown in C, obtained with ImageJ software. Three independent experiments were performed. Representative results are shown. Fold enrichment = ChIP/Input DNA. Error bars represent standard deviation.Back to article page