Objective
The actin cytoskeleton plays a central role in many fundamental cell functions such as cell motility (Pollard and Borisy 2003)*, endocytosis (Jeng and Welch 2001), phagocytosis (Castellano and others 2001) and cytokinesis (Pollard and others 1990). The rem odelling of the actin cytoskeleton is controlled by multiple signalling pathways. The in vivo signalling activity of GTP-binding proteins ol the Rho subfamily requires numerous effectors, many of which are involved in regulating the reorganisation of the a ctin cytoskeleton (Bishop and Hall 2000). Recent results provided insights into the structure of one of these effectors, the Arp2/3 complex (Robinson and others 2001; Volkmann and others 2001). Formons, downstream effectors of Rho proteins, have multi-doma in structure involving FH1, FH2, FH3, auto-regulatory and Rho protein binding domains. For the S. cerevisiae formin, Bnilp, it has been shown that a construct of the FH1-FH2 region nucleates unbranched actin filaments in vitro independently of the Arp2/3 c omplex (Pring and others 2003; Pruyne and others 2002; Sagot and others 2002). However, much less is known about the corresponding domains from mammalian formins. To elucidate the molecular mechanisms underlying the function of mDia proteins we will stud} different mammalian formin domains. We have the expression systems (E. Coli) for three mDia FH2 domains. Our first experiments showed that the FH2 domain of mDia3 actually blocked the polymerisation by buiding to the barbed end of actin filaments. This FH2 domain could bind to actin filaments in a 1:1 molar ratio and decreased the critical concentration of actin. To gain further insights we will characterise /'. the effect of formin domains on the actin polymerisation, ii. the interaction of formin domains with actin in the presence of actin-binding proteins (e.g. tropomyosin) and their possible competition, Hi. the possible interactions between formins and actin monomers, iv. the #
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 cell biology cell signaling
- natural sciences biological sciences biochemistry biomolecules proteins
- engineering and technology materials engineering amorphous solids
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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-11
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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
PECS
Hungary
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.