Sp1 represses IL-2 receptor alpha chain gene expression.


Sp1 is a DNA-binding protein that acts as a positive regulator of eukaryotic gene expression. The interleukin-2 receptor alpha chain (IL2R alpha) gene 5' regulatory region contains a single Sp1 consensus motif that overlaps a CArG box capable of binding serum response factor (SRF). The CArG box has previously been shown to be important for IL2R alpha gene… (More)


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