Objective
Phosphoinositide 3-kinases (PI3K)s regulate many cellular responses. The host laboratory has identified a novel PI3K in myeloid cells which, unlike known PI3Ks, is not activated by receptor protein-tyrosine kinases, but by the BY subunits of heterotrimeric G proteins.
The enzyme is a heterodimer of a 120 kDa and a 101 kDa protein; both subunits are now cloned. This proposal is aimed at characterizing the molecular structure of the novel PI3K, its regulation by ISY subunits, and its involvement in cellular signalling. The project is based on the generation of deletion mutants of both PI3K subunits for definition of the molecular basis of their interaction, the catalytic activity, and their interaction with BY subunits.
We shall introduce the enzyme into mammalian cells by transient transfection to determine its effect on cellular signalling and we shall attempt to generate dominant negative forms of the PI3K for selective inhibition of G protein BY subunit-mediated pathways.
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.
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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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.
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Funding Scheme
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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
CB2 4AT Cambridge
United Kingdom
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