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Doing Charges Right: Modelling Ion-Controlled Biological Processes with the Corr...

Doing Charges Right: Modelling Ion-Controlled Biological Processes with the Correct Toolbox Electrical stimuli are essential for a plethora of biological functions. Unlike in electronics, where electrons form currents, nature rather exploits ions as charge carriers. Lack of a consistent molecular picture of action of ion... ver más

30/09/2028

UOCHB AVCR

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

USTAV ORGANICKE CHEMIE A BIOCHEMIE AV CR V.V.... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2023-06-08

ERC-2022-ADG: ERC ADVANCED GRANTS Scope:Objectives

I+D

Cerrada hace 2 años

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No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

UOCHB AVCR

2.50M€ | Lider

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Duración del proyecto: 63 meses Fecha Inicio: 2023-06-08
Fecha Fin: 2028-09-30

Líder del proyecto

USTAV ORGANICKE CHEMIE A BIOCHEMIE AV CR V.V.... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Electrical stimuli are essential for a plethora of biological functions. Unlike in electronics, where electrons form currents, nature rather exploits ions as charge carriers. Lack of a consistent molecular picture of action of ions impairs progress in fundamental understanding of ion-controlled biological processes and in designing smart strategies for fixing ion-related pathological conditions. Molecular simulations represent a powerful tool for modelling such processes, however, they can only be as good as is the underlying interaction model (force field). A major drawback of commonly used force fields is the lack of description of electronic polarization, which results in severe artifacts such as a dramatic over-binding of ions, preventing, e.g., accurate modelling of calcium signalling processes. This now well-recognized deficiency hampers faithful modelling of complex ion-involving biological processes. We will employ machine learning techniques to build a de novo comprehensive force field for biological systems, that accounts for electronic polarization in a mean field way via charge scaling. This approach will qualitatively improve modelling of ions in biological contexts without additional computational costs. This will allow us to address accurately the following highly relevant ion-specific processes of increasing complexity from molecular over cellular to organ levels: 1. Dissolution of radical anions of aromatic molecules as key intermediates in technologically and biologically important non-enzymatic and enzymatic Birch reduction processes. 2. Direct membrane translocation of cationic cell penetrating peptides with a potential of drug delivery. 3. Circulation of calcium ions as signalling charge carriers through ion channels of hair cells in the cochlea. At the same time, the newly developed charge scaled force field will be made freely available to the community for further development and ready to be used within major simulation program packages.

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