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(a) GATA-1 chIp-PCR assays for subdivisions of region 009BG containing the HS2 element show specific enrichment of the core sequence (Middle) but not of the flanking sequences (Top and Bottom). The lanes are described in Fig. 1. (b) The sequence of the core HS2 region amplified is shown, and the consensus GATA-1 site is boxed in black.
