Molecular characterization of the interaction between the disordered c-Myc transactivation domain and the TATA-binding protein (TBP)

• The proto-oncogene c-myc affects the occurrence, expansion, and evolution of numerous aggressive human cancers, and is often associated with the late-stage and/or poor prognostic disease. Regulation of target gene activity by c-Myc occurs through protein interactions with the c-Myc transactivation domain (TAD) which, in addition to binding the TATA-binding protein (TBP) also recruits a wide variety of co-activators and suppressor proteins. Here, we present a molecular model, based on NMR, X-ray crystallography and SPR measurements, which describes how the c-Myc TAD binds to TBP. Our model contributes to the understanding of how c-Myc can regulate individual genes as well as entire gene programs.

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