Objective
Several phosphorylated derivatives of myo-inositol are present in eukariotic cells, the most abundant of these being the fully phosphorylated inositol hexakisphosphate (IP6). IP6 is the precursor of a new class of more polar inositol polyphosphates containing one or two high-energy pyrophosphate bonds.
The best characterized inositol pyrophosphates are the diphosphoinositol pentakisphosphate (IP7 or PP-IP5) and the bis-diphosphoinositol tetrakisphosphate (IP8 or [PP]2-IP4). IP7 and IP8 are present in all eukaryotic cell analyzed thus far, from the amebae Dictyostelium to mammalian neurons, and the enzymes responsible for their synthesis are highly conserved throughout evolution.
The high-energy bonds present in IP7 and IP8 have the potential for unprecedente d molecular actions and their unique structure suggests that inositolpyrophosphates represent a new class of messengers with basic and not yet fully characterized functions. The cloning of the IP6 kinases (IP6K), the enzymes responsible for the synthesis o f inositol pyrophosphates, has provided me with the opportunity of obtaining the molecular tools necessary for studying inositol-pyrophosphate-mediated signalling.
Using recombinant IP6K, I was able to synthesize radiolabelled IP7 of high specific activity. Our recent exciting results demonstrate that IP7 acts as a phosphate donor in a novel mechanism of protein phosphorylation. It is my intention to expand and further characterize the means by which inositol pyrophosphates regulate cell functions by combining biochemical, molecular and genetic approaches.
Moreover, I will spend considerable effort in developing new methodology for the detection of inositol pyrophosphates in vivo. I believe that a simple and reliable technique enabling the analysis of IP7-dependent signalling in eukaryotic cells will dramatically increase the level of interest in the field, opening the opportunity for very unique and potentially groundbreaking discoveries.
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
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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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.
FP6-2002-MOBILITY-12
See other projects for this call
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.
IRG - Marie Curie actions-International re-integration grants
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.