The NMR solution structure of a mutant of the Max b/HLH/LZ free of DNA: insights into the specific and reversible DNA binding mechanism of dimeric transcription factors.

Abstract excerpt

Basic region-helix1-loop-helix2-leucine zipper (b/H(1)LH(2)/LZ) transcription factors bind specific DNA sequence in their target gene promoters as dimers. Max, a b/H(1)LH(2)/LZ transcription factor, is the obligate heterodimeric partner of the related b/H(1)LH(2)/LZ proteins of the Myc and Mad families. These heterodimers specifically bind E-box DNA sequence (CACGTG) to activate (e.g. c-Myc/Max) and repress (e.g....

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