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Título: | Coordinated Activity of Y family TLS polymerases and EXO1 protects non-S phase cells from UV-Induced cytotoxic lesions |
Autor: | Sertic, Sarah; Mollica, Antonio; Campus, Ilaria; Roma, Stefania; Tumini, Emanuela CSIC ORCID; Aguilera, Andrés CSIC ORCID; Muzi-Falconi, Marco | Palabras clave: | UV lesions Nucleotide excision repair Translesion synthesis DNA polymerase EXO1 Closely opposing lesions DNA repair Genome instability Double-strand breaks |
Fecha de publicación: | 5-abr-2018 | Editor: | Elsevier | Citación: | Molecular Cell 70(1): 34-47.e4 (2018) | Resumen: | UV-induced photoproducts are responsible for the pathological effects of sunlight. Mutations in nucleotide excision repair (NER) cause severe pathologies characterized by sunlight sensitivity, coupled to elevated predisposition to cancer and/or neurological dysfunctions. We have previously shown that in UV-irradiated non-cycling cells, only a particular subset of lesions activates the DNA damage response (DDR), and this requires NER and EXO1 activities. To define the molecular mechanism acting at these lesions, we demonstrate that Y family TLS polymerases are recruited at NER- and EXO1-positive lesion sites in non-S phase cells. The coordinated action of EXO1 and Y family TLS polymerases promotes checkpoint activation, leads to lesion repair, and is crucial to prevent cytotoxic double-strand break (DSB) formation. | Versión del editor: | https://doi.org/10.1016/j.molcel.2018.02.017 | URI: | http://hdl.handle.net/10261/180468 | DOI: | 10.1016/j.molcel.2018.02.017 | ISSN: | 1097-2765 | E-ISSN: | 1097-4164 |
Aparece en las colecciones: | (CABIMER) Artículos |
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