Representative examples of ChIP-sequencing data at annotated loci. The panels show DNA sequence tag densities observed following ChIP-sequencing with the indicated antibodies at GATA6 (A), MEIS1 (B), UNCX (C), ZIC4 (D) and NKX2-3 (E), in the BF strain of HFs. Panels (F) and (G) show the equivalent ChIP-sequencing data for the TLX2 and LBX1 loci in both BF and Hs68 cells. The maximum coverage for each track is shown on the left and a size bar is included above the IGV screenshot. The genomic organization of each locus according to the UCSC genome browser is shown below, with arrows indicating the direction of transcription. HF, human fibroblast; kb, kilobase; IGV, Integrative Genomics Viewer.