Reference: Maldonado E and Allende JE (1999) Phosphorylation of yeast TBP by protein kinase CK2 reduces its specific binding to DNA. FEBS Lett 443(3):256-60

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Abstract


Protein kinase CK2 is a ubiquitous Ser/Thr kinase which phosphorylates a large number of proteins including several transcription factors. Recombinant Xenopus laevis CK2 phosphorylates both recombinant Saccharomyces cerevisiae and Schizosaccharomyces pombe TATA binding protein (TBP). The phosphorylation of TBP by CK2 reduces its binding activity to the TATA box. CK2 copurifies with the transcription factor IID (TFIID) complex from HeLa cell extracts and phosphorylates several of the TBP-associated factors within TFIID. Taken together these findings argue for a role of CK2 in the control of transcription by RNA polymerase II through the modulation of the binding activity of TBP to the TATA box.

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Journal Article | Research Support, Non-U.S. Gov't
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Maldonado E, Allende JE
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