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Structural aspects of interactions within the Myc/Max/Mad network.

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  • 1Department of Biochemistry and Center for Biophysics & Computational Biology, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, IL 61801, USA.


Recently determined structures of a number of Myc family proteins have provided significant insights into the molecular nature of complex assembly and DNA binding. These structures illuminate the details of specific interactions that govern the assembly of nucleoprotein complexes and, in doing so, raise more questions regarding Myc biology. In this review, we focus on the lessons provided by these structures toward understanding (1) interactions that govern transcriptional repression by Mad via the Sin3 pathway, (2) homodimerization of Max, (3) heterodimerization of Myc-Max and Mad-Max, and (4) DNA recognition by each of the Max-Max, Myc-Max, and Mad-Max dimers.

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