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3D structure model of the DLF1 basic domain complexed to DNA. A, 3D structure model of the DLF1 basic domain and Leu zipper bound to its target DNA duplex. The DLF1 protein dimerizes at the Leu zipper and binds the DNA duplex with its basic domain in a scissor-like grip. Arg-143 is indicated by the black arrowhead. B, Close-up of the 3D structure model indicating the potential linkage of Arg-143 to two phosphate groups of the DNA backbone.
