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Figure Caption
Fig. 8 Nkx2.5 activates cardiac genes in fibroblasts. A and B are images of the same field after transfection with myc-tagged Nkx2.5. C and D are of the same field after transfection with myc-tagged Nkx2.5 missing the homeodomain. (A,B) All of the cells expressing the product of the transfected gene, as revealed by immunoreactivity for the myc tag (A), are also immunoreactive for MF20 (B). (C) The myc-tagged construct with Nkx2.5 missing the homeodomain transfects cells equally well, such that they become immunoreactive for 9E10 but (D) no cells express MF20.
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