Additional data file 6.

(a) Diagram of the HoxA cluster region compared in (b, c). Features are as described in Figure 2b. Predicted BglII restriction pattern below HoxA schematic is shown to scale and restriction fragments are identified below each line. (b) 3C chromatin interaction profiles from four different fixed cluster regions. Fixed fragment is indicated above each graph. 3C data are from Figures 3 &4 except that interaction frequency in each cellular state is expressed relative to contact neighboring fixed region, which was set at one. Each histogram value represents the average of at least three PCR reactions and error bars correspond to standard error of the mean. (c) 5C chromatin interaction profiles from four different fixed cluster regions. 5C data are from Figures 5 &6 except that interaction frequency is presented as described in (b). Interaction frequencies are the average of at least three array technical repeats. Error bars represent standard error of the mean.

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Fraser et al. Genome Biology 2009 10:R37   doi:10.1186/gb-2009-10-4-r37