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Content archived on 2024-05-30

Chemogenomic profiling of drug-protein binding by shape, enthalpy/entropy and interaction kinetics

Objective

Once a new drug target is discovered, screening techniques are applied to detect prospective hits. However, which hit should be taken to the next level of development? This decision is most crucial as it entails huge financial commitments of the subsequent drug optimization. In consequence drugs are only developed against diseases that promise short-term profit. Chemogenomic profiling allows to compile parameters characterizing binding of drug candidates that achieve optimal interference with protein function. Membrane proteins demand different properties than viral ones. Either high isoform selectivity, promiscuous family-wide binding or efficient resistance tolerance is desired. This calls for very different ligand binding characteristics, requiring either enthalpy-/entropy-driven binding, rigid shape complementarity or pronounced residual mobility at the binding site. Interaction kinetics determine on/off-rates and the time a drug spends with its target. Their correct adjustment is essential for drug efficacy. At present chemogenomic binding parameters are rarely available and their correlation with the required target properties is hardly understood. We want to compile a knowledge base from congeneric protein-ligand series to correlate structural, thermodynamic, interaction-kinetic and dynamic behaviour to predict the qualities a lead must meet to optimally address a target. Our studies involve crystal structure analyses, microcalorimetry, molecular dynamics simulations, site-directed mutagenesis and interaction kinetics. This provides a comprehensive picture to productively change our current understanding of drug-protein binding to move from a current trial-and-error to a more efficient rational approach. It provides the opportunity to also consider orphan drugs and address neglected diseases.

Fields of science (EuroSciVoc)

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Topic(s)

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Call for proposal

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ERC-2010-AdG_20100317
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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.

ERC-AG - ERC Advanced Grant

Host institution

PHILIPPS UNIVERSITAET MARBURG
EU contribution
€ 1 754 615,28
Address
BIEGENSTRASSE 10
35037 Marburg
Germany

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Region
Hessen Gießen Marburg-Biedenkopf
Activity type
Higher or Secondary Education Establishments
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Total cost

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No data

Beneficiaries (1)

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