Membrane proteins

Hydrogen-deuterium exchange mass spectrometry captures distinct dynamics upon substrate and inhibitor binding to a transporter

[Nature Communications] Proton-coupled transporters use transmembrane proton gradients to power active transport of nutrients inside the cell. High-resolution structures often fail to capture the coupling between proton and ligand binding, and …

Perturbed structural dynamics underlie inhibition and altered efflux of the multidrug resistance pump AcrB

[Nature Communications] Resistance–nodulation–division efflux pumps play a key role in inherent and evolved multidrug resistance in bacteria. AcrB, a prototypical member of this protein family, extrudes a wide range of antimicrobial agents out of …

Structural predictions of the functions of membrane proteins from HDX-MS

We describe how the use of computational strategies can aid the interpretation of experimental data and enable visualisation of otherwise intractable membrane protein states. This unique integration of experiments with computations holds significant potential for future applications.

Integrating hydrogen–deuterium exchange mass spectrometry with molecular dynamics simulations to probe lipid-modulated conformational changes in membrane proteins

It has become increasingly evident that direct interactions of membrane proteins with their surrounding lipids play key roles in regulating both protein conformations and function. However, the exact nature and structural consequences of these interactions remain difficult to track at the molecular level. Here, we present a protocol that specifically addresses this challenge.

Direct protein-lipid interactions shape the conformational landscape of secondary transporters

Here, we combine hydrogen-deuterium exchange mass spectrometry (HDX-MS) with molecular dynamics (MD) simulations to understand how lipids regulate the conformational dynamics of secondary transporters at the molecular level.

Structural Lipids Enable the Formation of Functional Oligomers of the Eukaryotic Purine Symporter UapA

We investigated the effect of membrane lipids in the structure and transport activity of the purine transporter UapA from Aspergillus nidulans.