Objective
Sorting events that occur in endosomes are very important for cellular trafficking of proteins and membranes along the endocytic pathway. The shape of sorting endosomes plays a major role in their function. However, the molecular mechanisms that control the shape of sorting endosomes are far from being elucidated. Motors and cytoskeleton can influence the shape of membranes, especially of high curvature, by establishing tension on membranes. I propose to study the role of an actin cytoskeleton-motor, myosin 1b (Myo1b), a mammalian class I myosin, in regulating the morphology of sorting endosomes. Myo1b localizes to sorting endosomes and when overexpressed increases the formation of tubules in endosomes. I hypothesize that Myo1b induces the formation of membrane tubules by recruiting actin filaments that generates a pulling force on endosomal membranes. The aim of my project is to understand the molecular mechanisms involved in tubule formation mediated by Myo1b in sorting endosomes in mammalian cells. First, I will identify the mechanism by which Myo1b localizes to sorting endosomes. Second, I will establish whether Myo1b recruits actin filaments to sorting endosomes. Third, I will show that Myo1b is required for the formation of tubules in membranes of sorting endosomes. Fourth, I will investigate which sorting events on endosomes are dependent on Myo1b function. These aims employ molecular biology, biochemistry, cell biology and biophysics methodologies in a novel approach to study the shape of sorting endosomes. Ultimately, I wish to unravel the molecular mechanism whereby the Myo1b-dependent recruitment of actin to endosomes regulates endosomal morphology and endocytic trafficking.
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 biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences cell biology
- natural sciences biological sciences biophysics
- natural sciences biological sciences molecular biology
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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.
FP7-PEOPLE-2007-2-1-IEF
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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.
Coordinator
75231 Paris
France
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.