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Proceedings/Recueil Des Communications Pure and Applied Chemistry Année : 2013

Modeling complex biological systems: From solution chemistry to membranes and channels

Résumé

Complex biological systems are intimately linked to their environment, a very crowded and equally complex solution compartmentalized by fluid membranes. Modeling such systems remains challenging and requires a suitable representation of these solutions and their interfaces. Here, we focus on particle-based modeling at an atomistic level using molecular dynamics (MD) simulations. As an example, we discuss important steps in modeling the solution chemistry of an ion channel of the ligand-gated ion channel receptor family, a major target of many drugs including anesthetics and addiction treatments. The bacterial pentameric ligand-gated ion channel (pLGIC) called GLIC provides clues about the functional importance of solvation, in particular for mechanisms such as permeation and gating. We present some current challenges along with promising novel modeling approaches.

Dates et versions

hal-00760163 , version 1 (03-12-2012)

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Benoist Laurent, Samuel Murail, Franck da Silva, Pierre-Jean Corringer, Marc Baaden. Modeling complex biological systems: From solution chemistry to membranes and channels. Pure and Applied Chemistry, 85 (1), pp.1-13, 2013, ⟨10.1351/PAC-CON-12-04-10⟩. ⟨hal-00760163⟩
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