NER

Structural studies of Nucleotide Excision Repair for drug development targeting protein-DNA interactions

Coordinatore	Masarykova univerzita    more  Organization address address: Zerotinovo namesti 9 city: BRNO STRED postcode: 60177 contact info Titolo: Dr. Nome: Veronika Cognome: Papouskova Email: send email Telefono: 420549000000
Nazionalità Coordinatore	Czech Republic [CZ]
Totale costo	100˙000 €
EC contributo	100˙000 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2013-CIG
Funding Scheme	MC-CIG
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-09-01   -   2017-08-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	Masarykova univerzita  Organization address address: Zerotinovo namesti 9 city: BRNO STRED postcode: 60177 contact info Titolo: Dr. Nome: Veronika Cognome: Papouskova Email: send email Telefono: 420549000000	CZ (BRNO STRED)	coordinator	100˙000.00

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 Obiettivo del progetto (Objective)

'Numerous DNA repair pathways are required for genomic stability and chromosome maintenance. XPF/ERCC1 protein complex is an evolutionally conserved structure-specific endonuclease involved in nucleotide excision repair (NER) and other DNA repair pathways, making it essential for viability. The pleiotropic phenotypes of XPF/ERCC1 deficiency in humans range from cancer-predisposition to accelerated aging and severe developmental abnormalities. The research outlined here combines biochemical and structural approaches to study XPF/ERCC1 incision 5′ to the lesion during NER. The proposal is guided by the premise that XPA and RPA proteins, two other NER core factors, stimulate XPF/ERCC1 activity. The primary aim is to structurally characterize the multiprotein-DNA assembly in order to elucidate the DNA binding and catalytic activity of XPF/ERCC1. To achieve this we will address how individual DNA binding domains of XPF/ERCC1 contribute to DNA cleavage, how XPA recruits XPF/ERCC1 to sites of NER, and how RPA in conjunction with XPA pre- organize the DNA structure at ds/ss junctions. The public health importance of this research comes from the increasing interest in the regulation of XPF/ERCC1 activity, due to its involvement in DNA repair pathways implicated in the resistance of tumors to chemotherapy. Cancer associated deaths are the number one cause of mortality worldwide and resistance to current chemotherapeutics remains a major clinical hurdle. Sensitizing cancer cells to treatment with DNA damaging chemotherapeutics holds great value. One way to achieve this result is the development of small drug-like molecules targeting DNA binding sites of NER proteins to disrupt the formation of a functional NER complex and decrease its capacity.'