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An ACH substructure is formed independent of EKLF. (A) Examples of PCR-amplified ligation products run on a 2% agarose gel. Primer combinations are shown on the right. (B,C) Locus-wide relative cross-linking frequencies of HindIII restriction fragments containing 5′HS-62 (b), and 5′HS4/5 (c). See the legend for Figure 1 for other details.
