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The AP-1 and ATF/CREB families of eukaryotic transcription factors are dimeric DNA-binding proteins that contain the bZIP structural motif. The AP-1 and ATF/CREB proteins are structurally related and recognize identical half-sites (TGAC), but they differ in their requirements for half-site spacing. AP-1 proteins such as yeast GCN4 preferentially bind to… (More)
This appendix presents a procedure for transformation using calcium chloride, and also an alternate procedure for one-step preparation and transformation of competent cells.