Lipid Nanodiscs
Lipid Nanodiscs - Related Videos
12:25
A Step-by-step Method for the Reconstitution of an ABC Transporter into Nanodisc Lipid Particles
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Cited by 23 •
2012
Nanodiscs are small discoid particles that incorporate membrane proteins into a small patch of phospholipid bilayer. We provide a visual protocol that shows the step-by-step incorporation of the MalFGK2 transporter into a disc.
04:46
Synthesis of Nanodisc-Stabilized Membrane Protein Antigens Using a Cell-Free System
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2025
Source: Gilmore, S. F., et al. Cell-Free Scaled Production and Adjuvant Addition to a Recombinant Major Outer Membrane Protein from Chlamydia muridarum for Vaccine Development. J. Vis. Exp. (2022)This video demonstrates the cell-free synthesis of nanodisc-stabilized membrane protein antigens using a dual-compartment system. The device maintains optimal conditions for efficient protein synthesis, proper folding, and stable integration into nanodiscs.
10:21
A Technique for Stabilizing Membrane Proteins in Nanodiscs
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2026
This study outlines the procedure for reconstituting the membrane protein TWIK-related acid-sensitive K+ channel 2 (Task2) into nanodiscs. The successful assembly was confirmed by single-particle cryo-electron microscopy, which yielded well-defined two-dimensional class averages.
08:24
Co-Translational Insertion of Membrane Proteins into Preformed Nanodiscs
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Cited by 5 •
2020
Co-translational insertion into pre-formed nanodiscs makes it possible to study cell-free synthesized membrane proteins in defined lipid environments without contact with detergents. This protocol describes the preparation of essential system components and the critical parameters for improving expression efficiency and sample quality.
03:38
Structure of Lipids
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2020
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and...
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Scaffold molecules surround the lipid bilayer and stabilize its discoidal architecture, allowing the membrane patch to remain soluble for biochemical and biophysical analysis. Their presence helps maintain a defined membrane environment around embedded proteins rather than leaving the lipids as an uncontrolled aggregate. This stabilization is central to examining membrane-associated components with purified experimental systems.
Researchers can adjust the phospholipid composition and the size of lipid nanodiscs during assembly. These variables provide control over the membrane environment presented to an embedded protein or other component, helping investigators examine how membrane context affects behavior. Such tunability is useful when testing protein function under different controlled conditions rather than relying on one fixed membrane model.
Lipid nanodiscs reduce the complexity of whole-cell membranes while retaining important protein–lipid interactions. This balance gives researchers access to purified components and a more controlled setting for interpreting measurements. Compared with a cellular membrane, the simplified system can make it easier to connect an observed structural, spectroscopic, or binding result with the membrane-associated component being investigated.
By presenting membrane proteins with a defined lipid bilayer, lipid nanodiscs allow investigators to examine processes that depend on membrane context, including protein folding, transport, and signaling. Preserving relevant protein–lipid interactions is important because removing a protein from its membrane environment may change its behavior. The resulting measurements can clarify how membrane association contributes to biological function.
Assembly combines selected phospholipids with scaffold molecules and, when required, a membrane protein or other purified component. The lipids form the bilayer, while the surrounding scaffold molecules stabilize the nanoscale disc. Researchers tune composition and size during this process, producing a soluble preparation suitable for subsequent structural, spectroscopic, or biochemical measurements.
Lipid nanodiscs support structural studies, spectroscopy, and ligand-binding assays using purified membrane-associated components. They can also provide a platform for investigating membrane protein folding, transport, and signaling. Because the membrane composition and size are controllable, researchers can relate measured structural or functional changes to a defined lipid environment instead of an entire cellular membrane.
In biology, these systems help connect membrane structure with the function of proteins involved in transport and signaling. Their controlled environments also support research relevant to therapeutic development and biosensor development. By simplifying membrane analysis without eliminating key protein–lipid interactions, they provide a practical bridge between purified-component experiments and questions about membrane-associated biological activity.