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Towards a complete understanding of the roles of the Exon Junction Complex in Drosophila: Identification and functional characterization of the RNA targets and protein partners of the EJC

Project information

Grant agreement ID: 276320

Status

Closed project

  • Start date

    1 July 2012

  • End date

    30 June 2014

Funded under:

FP7-PEOPLE

  • Overall budget:

    € 169 863,20

  • EU contribution

    € 169 863,20

Coordinated by:

EUROPEAN MOLECULAR BIOLOGY LABORATORY

Germany

Objective

RNA localization allows eukaryotic cells to control gene expression in space and time and contributes importantly to cell polarization, allowing asymmetry in events such as cell division, oogenesis and body patterning. Major contributions to our understanding of the functional aspects of RNA regulation control have come from studies in Drosophila. Investigation into oskar mRNA localization in the oocyte, which is essential for germ cell development in the embryo, has revealed a key role of the Exon Junction Complex (EJC) RNA transport. In contrast, in mammals the main role of the EJC shown to date is in RNA quality control, in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons. However, recent reports have linked the EJC to development and cell polarization in mammals as well. The proposed project aims to determine the full spectrum of EJC functions in RNA regulation, using Drosophila as a model. This will be addressed by creating transgenic Drosophila strains expressing tagged-EJC fusions for use in biochemical assays. Purified EJC complexes will be analyzed by SOLEXA based deep-sequencing and SILAC based mass spectrometry following two major objectives: 1) to investigate the EJC associated transcriptome in the oocyte and selected tissues during development and 2) to define the oskar mRNA-associated EJC proteome and its composition at different exon-exon junctions and at different stages of its localization. The results obtained with this unbiased approach will constitute a major step forward in understanding EJC function, not only in the fly, but also in mammals. The project’s multidisciplinary nature, combining cutting-edge biochemical, genomic, and Drosophila genetic techniques, will provide a unique opportunity to generate new scientific knowledge and acquire novel experimental skills that will be essential bases for future research and an independent scientific career.
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Coordinator

EUROPEAN MOLECULAR BIOLOGY LABORATORY

Address

Meyerhofstrasse 1
69117 Heidelberg

Germany

Activity type

Research Organisations

EU Contribution

€ 169 863,20

Administrative Contact

Genevieve Reinke (Ms.)

Project information

Grant agreement ID: 276320

Status

Closed project

  • Start date

    1 July 2012

  • End date

    30 June 2014

Funded under:

FP7-PEOPLE

  • Overall budget:

    € 169 863,20

  • EU contribution

    € 169 863,20

Coordinated by:

EUROPEAN MOLECULAR BIOLOGY LABORATORY

Germany