Objective
"Artificial metalloenzymes are expected to bring together the best of the two worlds of homogeneous and enzyme catalysis, combining broad substrate scope with high activity and reaction selectivity under mild conditions. Herein we propose to construct an artificial metalloenzyme based on a dirhodium active site in the capsid scaffold of the protein ferritin. Catalytically competent dirhodium compounds are derived from dirhodium tetraacetate, which possesses fourfold symmetry, with the ligands symmetrically arranged around the equator of the rhodium dimer. The transition metal core is active in a wide range of reactions including cyclopropanation, C-H activation and O-H insertion. These transformations play an important role in the synthesis of natural products, pharmaceuticals, and other industrially relevant targets. We will exploit the fourfold-symmetric pores of the capsidic protein ferritin to construct a dirhodium binding site. A ferritin mutant will be produced with four glutamate residues pointing in the channel lumen, suitable as ligands for the rhodium dimer. After derivatization with dirhodium the artificial capsid will be employed as a catalyst in organometallic reactions, such as the cyclopropanation of diaza carbonyl compounds with olefins in aqueous solution. The catalytic properties of this first dirhodium enzyme will be fine-tuned by the highly modular secondary ligand environment of the protein. The dirhodium binding site will also be introduced at the inner mouth of the fourfold channel, resulting in an active site inside the capsid. High local substrate concentrations and the presence of a second, complementary reaction center inside the capsid might allow multi-enzyme cascade catalysis, thus paving the way toward artificial nanoreactors with tailored properties."
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.
- medical and health sciences basic medicine pharmacology and pharmacy pharmaceutical drugs
- natural sciences chemical sciences inorganic chemistry transition metals
- natural sciences chemical sciences catalysis
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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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.
FP7-PEOPLE-2011-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
8092 Zuerich
Switzerland
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.