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MITOQUAD SIGNED

Unveiling the mitochondrial role of DNA2, a human helicase-nuclease causing mtDNA deletion associated syndrome.

Total Cost €

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EC-Contrib. €

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Partnership

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Project "MITOQUAD" data sheet

The following table provides information about the project.

Coordinator
UMEA UNIVERSITET 

Organization address
address: UNIVERSITETOMRADET
city: UMEA
postcode: 901 87
website: www.umu.se

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Sweden [SE]
 Total cost 185˙857 €
 EC max contribution 185˙857 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2018
 Duration (year-month-day) from 2018-01-01   to  2019-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UMEA UNIVERSITET SE (UMEA) coordinator 185˙857.00

Map

 Project objective

Multiple deletions in mtDNA give rise to a variety of neuromuscular symptoms, often associated with genetic inherited disorders and aging and they have been reported in patients with neurodegenerative diseases, such as Parkinson’s and Alzheimer’s diseases. In spite of its medical importance, not much is yet known about the mechanisms by which mtDNA deletions are formed. Progressive external ophtalmoplegia (PEO) is one of the conditions characterized by the accumulation of mtDNA deletions. This disease is caused by mutations in components of the mtDNA replication machinery, like the DNA polymerase γ (POLγ) and the replicative helicase TWINKLE. Recently, also the helicase-nuclease DNA2 has been found mutated in patients affected by this disorder. The precise function of human DNA2 (hDNA2) has remained elusive. hDNA2 localizes to mitochondria and has the biochemical properties to process four-stranded DNA structure (G-quadruplexes). Interestingly, G-quadruplex DNA associates with mtDNA deletions formation in human diseases. To dissect the mitochondrial role of hDNA2, I will focus on the mechanism of hDNA2 recruitment to mtDNA. Then I will address the role of DNA2 in mitochondria metabolism and in G-quadruplexes mtDNA metabolism and I will characterize the consequences of disease-associated mutations in DNA2 gene. I will employ a range of in vitro (based on recombinant protein) and in vivo (inducible cell systems and yeast model). The clarification of the hDNA2 mitochondrial biological function will help to elucidate the mechanism by which mtDNA deletions are formed in mitochondrial disorders. Moreover, MITOQUAD project will lead to a deeper understanding of how mtDNA integrity is maintained, a relevant question for understanding the early development and progress of a large number of mitochondrial disorders, in order to treat or prevent their occurrence.

 Publications

year authors and title journal last update
List of publications.
2020 Jan Jamroskovic, Mara Doimo, Karam Chand, Ikenna Obi, Rajendra Kumar, Kristoffer Brännström, Mattias Hedenström, Rabindra Nath Das, Almaz Akhunzianov, Marco Deiana, Kazutoshi Kasho, Sebastian Sulis Sato, Parham L. Pourbozorgi, James E. Mason, Paolo Medini, Daniel Öhlund, Sjoerd Wanrooij, Erik Chorell, Nasim Sabouri
Quinazoline Ligands Induce Cancer Cell Death through Selective STAT3 Inhibition and G-Quadruplex Stabilization
published pages: 2876-2888, ISSN: 0002-7863, DOI: 10.1021/jacs.9b11232
Journal of the American Chemical Society 142/6 2020-04-24
2018 Ali Al-Behadili, Jay P Uhler, Anna-Karin Berglund, Bradley Peter, Mara Doimo, Aurelio Reyes, Sjoerd Wanrooij, Massimo Zeviani, Maria Falkenberg
A two-nuclease pathway involving RNase H1 is required for primer removal at human mitochondrial OriL
published pages: 9471-9483, ISSN: 0305-1048, DOI: 10.1093/nar/gky708
Nucleic Acids Research 46/18 2020-04-24

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The information about "MITOQUAD" are provided by the European Opendata Portal: CORDIS opendata.

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