PRIMASE_NMR
Financiado
Visualizing Primase Initiating DNA Replication using NMR Spectroscopy
The replication of DNA and therefore of the genetic information is realized at the molecular level in three steps: helicases open the DNA, primases initiate the replication and polymerases use this primer to duplicate the DNA stra...
The replication of DNA and therefore of the genetic information is realized at the molecular level in three steps: helicases open the DNA, primases initiate the replication and polymerases use this primer to duplicate the DNA strand. The precise mechanism of action of primases has up to now remain quite elusive and thus a better understanding of how primase works would be of great interest to fully understand the process of DNA replication.
Primases are classed into two groups, bacterial and archeal/eukaryal, and some archeal primase have the particularity to carry their biological function without requiring the association in a larger molecular complex, making them an accessible target to Nuclear Magnetic Resonance (NMR) spectroscopy.
In this project we propose to exploit the unique capacity of NMR spectroscopy for determining structure and dynamics of biomolecules in solution to investigate the ORF904 primase, free and in complex with its DNA template and the cofactors necessary for primer synthesis. We aim to characterize how this system assembles and to provide an atomic resolution picture of its mechanism of action, just before the creation of the first phosphodiester bound that initiate primer formation. We will also investigate the conformational changes occurring during the primer synthesis using Electron Paramagnetic Resonance (EPR) spectroscopy. Spectroscopic and computational innovative approaches will be developed to describe this complex dynamic system and complementary integrative structural biology will be used to support our findings.
By this study we aim to provide an accurate description of a primase accomplishing its biological function and therefore significantly deepen our knowledge of DNA replication. This in turn could be used in cancer biology to develop new therapeutic approaches.
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Duración del proyecto: 24 meses
Fecha Inicio: 2016-02-22
Fecha Fin: 2018-02-28
Fecha Fin: 2018-02-28
Línea de financiación: concedida
El organismo H2020 notifico la concesión del proyecto el día 2018-02-28
Línea de financiación objetivo
El proyecto se financió a través de la siguiente ayuda:
MSCA-IF-2015-EF:
Marie Skłodowska-Curie Individual Fellowships (IF-EF)
Cerrada
hace 9 años
Presupuesto
El presupuesto total del proyecto asciende a
175K€
Líder del proyecto
EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
No se ha especificado una descripción o un objeto social para esta compañía.
1.05M€ |
Participante