Figure 2.
HP1 binding detected by genomic tiling arrays. Data from a tiling array with 60 nt probes every 100 bp (40-bp spacing). (A) HP1 binding in a region surrounding the ck gene. (B) HP1 binding to the rl locus in the pericentric region of chromosome 2. Black bars represent probes that are unique in the genome; gray bars represent probes that gave multiple BLAST results in the fly genome. The height of the bars represents the log2 ratio of HP1-binding (Dam-HP1 over Dam-only). The data has been normalized to the median of the log2 ratios of the probes in the 50-kb ck region.
