Objective
Cellular regulation by soluble inositol phosphate messengers has yielded surprising knowledge that reaches well beyond the rigorously characterized regulation of Ca2+ release by inositol 1,4,5-trisphosphate (IP3), the best-known inositol phosphate. Inositol pyrophosphates belong to the diverse family of inositol polyphosphate species that have a range of signaling functions. The best-characterized inositol pyrophosphates are diphosphoinositol pentakisphosphate (IP7) and the bis-diphosphoinositol tetrakisphosphate (IP8). The activity of inositol pyrophosphates appears to be related to their rapid turnover in cells and also to their pyrophosphate groups, considered to contain high-energy bonds and unique signaling molecules implicated in regulation of processes, including apoptosis, telomere maintenance or vesicular trafficking. Inositol phosphate signaling molecules can directly mediate protein phosphorylation, a new way in which signals can be transduced in cells. Another phosphate molecule, inorganic polyphosphate (poly P), found in every living-cell, is a chain of many tens or hundreds of phosphate residues linked by the same phosphoanhydride bonds as in ATP. Poly P likely was a phosphorylating agent and catalyst of peptide bond formation in prebiotic times. It has been shown that poly P is essential in stringent response, survival for bacterial responses to stresses, starvation and pathogenesis. Yeast mutants, affected in enzymes of the inositol pyrophosphate synthesis have reduced intracellular poly P levels suggesting that inositol pyrophosphates are necessary for poly P synthesis and maintenance. The mechanism by which inositol pyrophosphates are able to transduce the cellular phosphate status into a cascade of signaling events is unknown. The present proposal tries to find links between inositol polyphosphate and poly P in relation to poly P synthesis and their role in cell signaling.
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 chemical sciences catalysis
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
You need to log in or register to use this function
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
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.
Coordinator
W1B 1AL 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.