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FEBS Lett. 2011 Sep 16;585(18):2818-25. doi: 10.1016/j.febslet.2011.04.064. Epub 2011 May 6.

Detecting UV-lesions in the genome: The modular CRL4 ubiquitin ligase does it best!

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1
Friedrich Miescher Institute for Biomedical Research, Maulbeerstrasse 66, CH-4058 Basel, Switzerland.

Abstract

The DDB1-DDB2-CUL4-RBX1 complex serves as the primary detection device for UV-induced lesions in the genome. It simultaneously functions as a CUL4 type E3 ubiquitin ligase. We review the current understanding of this dual function ubiquitin ligase and damage detection complex. The DDB2 damage binding module is merely one of a large family of possible DDB1-CUL4 associated factors (DCAF), most of which are substrate receptors for other DDB1-CUL4 complexes. DDB2 and the Cockayne-syndrome A protein (CSA) function in nucleotide excision repair, whereas the remaining receptors operate in a wide range of other biological pathways. We will examine the modular architecture of DDB1-CUL4 in complex with DDB2, CSA and CDT2 focusing on shared architectural, targeting and regulatory principles.

PMID:
21550341
DOI:
10.1016/j.febslet.2011.04.064
[Indexed for MEDLINE]
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