Concept

Membrane biology

Publications associées (31)

Label-free and charge-sensitive dynamic imaging of lipid membrane hydration on millisecond time scales

Biological membranes are highly dynamic and complex lipid bilayers, responsible for the fate of living cells. To achieve this function, the hydrating environment is crucial. However, membrane imaging typically neglects water, focusing on the insertion of p ...

2018

Pre-transition effects mediate forces of assembly between transmembrane proteins

Berend Smit

We present a mechanism for a generic, powerful force of assembly and mobility for transmembrane proteins in lipid bilayers. This force is a pre-transition (or pre-melting) effect for the first-order transition between ordered and disordered phases in the m ...

Elife Sciences Publications Ltd2016

Lipid Builder: A Framework To Build Realistic Models for Biological Membranes

Matteo Dal Peraro, Thomas Lemmin, Giorgio Elikem Tamo, Christophe Bovigny, Nicolas Grégoire Maïno

The physical and chemical characterization of biological membranes is of fundamental importance for understanding the functional role of lipid bilayers in shaping cells and organelles, steering vesicle trafficking and promoting membrane-protein signaling. ...

Amer Chemical Soc2015

Monitoring the Cellular Cholesterol Distribution via nanoSIMS Imaging

Mustafa Demir

Cholesterol is a very important lipid, manufactured by all animal cells for their use. About 20-25% of total daily cholesterol production occurs in the liver; other sites that have higher synthesis rate are intestine, adrenal glands and reproductive organs ...

2015

In situ synthesis and simulation of polydisperse amphiphilic membranes

Lida Kanari, Julian Charles Shillcock, Liesbeth Maria L Vanherpe, Guy Antoine Atenekeng Kahou, Juan Pablo Palacios

The field of coarse-grained simulations of biopolymers and membranes has grown rapidly in recent years. Industrial groups manufacture and use polymers in fields as diverse as chemicals processing and personal care products, while academic researchers are i ...

Springer India2015

The dynamics of a capsule in a wall-bounded oscillating shear flow

Lailai Zhu

The motion of an initially spherical capsule in a wall-bounded oscillating shear flow is investigated via an accelerated boundary integral implementation. The neo-Hookean model is used as the constitutive law of the capsule membrane. The maximum wall-norma ...

Amer Inst Physics2015

Photobleaching Kinetics and Time-Integrated Emission of Fluorescent Probes in Cellular Membranes

Daniel Sage

Since the pioneering work of Hirschfeld, it is known that time-integrated emission (TiEm) of a fluorophore is independent of fluorescence quantum yield and illumination intensity. Practical implementation of this important result for determining exact prob ...

Mdpi Ag2014

Perturbations of the Straight Transmembrane alpha-Helical Structure of the Amyloid Precursor Protein Affect Its Processing by gamma-Secretase

Matteo Dal Peraro, Patrick Fraering, Mitko Dimitrov, Thomas Lemmin

Background: Amyloid- neurotoxicity depends on the specificity of the proteolytic cleavage of the amyloid precursor protein (APP) transmembrane domain. Results: The APP transmembrane -helix is straight in a biological membrane bilayer. Conclusion: The flexi ...

American Society for Biochemistry and Molecular Biology2014

A fluorogenic probe for SNAP-tagged plasma membrane proteins based on the solvatochromic molecule Nile Red

Kai Johnsson, Rudolf Hovius, Luc Reymond, Howard Riezman, Efthymia Prifti

A fluorogenic probe for plasma membrane proteins based on the dye Nile Red and SNAP-tag is introduced. It takes advantage of Nile Red, a solvatochromic molecule highly fluorescent in an apolar environment, such as cellular membranes, but almost dark in a p ...

Amer Chemical Soc2014

Characterization of the motion of membrane proteins using high-speed atomic force microscopy

Henning Paul-Julius Stahlberg

For cells to function properly(1), membrane proteins must be able to diffuse within biological membranes. The functions of these membrane proteins depend on their position and also on protein-protein and protein-lipid interactions(2). However, so far, it h ...

Springer Nature2012

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