AP-1 Site of DNA:

The AP-1 sequence (ATGACTCAT) is a pseudopalindrome of two 4 base pair half-sites that overlap on a central guanine-cytosine base pair. This sequence is also recognized by the mammalian AP-1 factor, the nuclear transforming oncogene product Fos/Jun heterodimer, and CPC1 of Neurospora crassa. Each monomer of the GCN4 protein contacts one half-site of the AP-1 sequence, and thus induces amino acid biosynthesis.

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