Actin-membrane linkers: Insights from synthetic reconstituted systems

Archive ouverte

Tsai, Feng-Ching | Guérin, Gwendal | Pernier, Julien | Bassereau, Patricia

Edité par CCSD ; Elsevier -

International audience.

At the cell surface, the actin cytoskeleton and the plasma membrane interact reciprocally in a variety of processes related to the remodeling of the cell surface. The actin cytoskeleton has been known to modulate membrane organization and reshape the membrane. To this end, actin-membrane linking molecules play a major role in regulating actin assembly and spatially direct the interaction between the actin cytoskeleton and the membrane. While studies in cells have provided a wealth of knowledge on the molecular composition and interactions of the actin-membrane interface, the complex molecular interactions make it challenging to elucidate the precise actions of the actin-membrane linkers at the interface. Synthetic reconstituted systems, consisting of model membranes and purified proteins, have been a powerful approach to elucidate how actin-membrane linkers direct actin assembly to drive membrane shape changes. In this review, we will focus only on several actinmembrane linkers that have been studied by using reconstitution systems. We will discuss the design principles of these reconstitution systems and how they have contributed to the understanding of the cellular functions of actin-membrane linkers. Finally, we will provide a perspective on future research directions in understanding the intricate actin-membrane interaction.

Suggestions

Du même auteur

Unusual Organization of I-BAR Proteins on Tubular and Vesicular Membranes

Archive ouverte | Jarin, Zack | CCSD

International audience. Protein-mediated membrane remodeling is a ubiquitous and critical process for proper cellular function. Inverse Bin/Amphiphysin/Rvs (I-BAR) domains drive local membrane deformation as a precu...

Comparing physical mechanisms for membrane curvature-driven sorting of BAR-domain proteins

Archive ouverte | Tsai, Feng-Ching | CCSD

International audience. Protein enrichment at specific membrane locations in cells is crucial for many cellular functions. It is well-recognized that the ability of some proteins to sense membrane curvature contribu...

Membrane curvature induces cardiolipin sorting

Archive ouverte | Beltrán-Heredia, Elena | CCSD

International audience. Cardiolipin is a cone-shaped lipid predominantly localized in curved membrane sites of bacteria and in the mitochondrial cristae. This specific localization has been argued to be geometry-dri...

Chargement des enrichissements...