Objective
TGF-ß related growth factors signal through Smad proteins that transfer the signal from the receptor directly into the nucleus. The receptor-regulated Smads (R-Smads) Smad2 and SmadS arephosphorylated by the receptor kinase and form complexes with Smad4 that accumulate in the nucleus, where they participate in the regulation of gene transcription. Like Smad4, Smad2 and SmadS exhibit nucleocytoplasmic shuttling irrespective of the presence or absence of a signal.
This project aims at answering two clearly define d questions. Firstly, how does phosphorylation of R-Smadstrigger nuclear accumulation despite their constitutive shuttling properties? And secondly, which import and export receptors (karyopherins) or other regulatory proteins are involved in these transport processes? To answer these questions, a set of powerful experimental approaches will be employed. In the first phase, a novel GFP photo-activation approach will allow detailed studies of nucleocytoplasmic transport kinetics in real time in vivo. I will be able to dissect import from export and study both processes independently. In the second phase, I will take advantage of an in vitro import assay using permeabilised cells depleted of cytoplasm to directly compare the import characteristics of recombinant full length phosphorylated, recombinant unphosphorylated Smad2 as well as of active PhosphoSmad2/Smad4 complexes under different conditions. In a more wide-ranging approach, novel players involved in R-Smad import and export will be identified by a screen using a n siRNA library targeting over 8000 human mRNAs.
A quantitative in vivo export assay will be used to further characterise the effect of knock down of candidate proteins involved in R-Smad export. The project involves a plethora of novel methods, including cut ting edge microscopy and employment of functional genomics using an RNAi library.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences mathematics pure mathematics mathematical analysis differential equations
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences developmental biology
- natural sciences physical sciences optics microscopy confocal microscopy
- natural sciences mathematics applied mathematics mathematical model
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-MOBILITY-5
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
IIF - Marie Curie actions-Incoming International Fellowships
Coordinator
LONDON
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.