Lauryl Maltoside
Lauryl Maltoside - Related Videos
06:26
Rapid Assessment of Membrane Protein Quality by Fluorescent Size Exclusion Chromatography
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Cited by 2 •
2023
The present protocol describes a procedure to perform fluorescent size exclusion chromatography (FSEC) on membrane proteins to assess their quality for downstream functional and structural analysis. Representative FSEC results collected for several G-protein coupled receptors (GPCRs) under detergent-solubilized and detergent-free conditions are presented.
10:58
Isolation of Fecal Bacteria from Water Samples by Filtration
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Luisa Ikner The quality of water destined for use in agricultural, recreational, and domestic settings is of great importance due to the potential for outbreaks of waterborne disease. Microbial agents implicated in such events include parasites, bacteria, and viruses that are shed in high numbers in the feces of infected people and animals. Transmission to new and susceptible hosts may...
FAQs
The critical micelle concentration marks the condition at which lauryl maltoside molecules begin forming micelles in aqueous solution. This matters because micelles can disrupt lipid bilayers and surround released membrane components, allowing them to remain solubilized. Consequently, reaching this concentration is central to extracting membrane proteins from biological membranes for downstream analysis.
Its dodecyl chain provides a hydrophobic region that interacts with membrane lipids, while the maltose group provides a hydrophilic region compatible with the surrounding aqueous solution. This combination enables the molecules to associate with lipid bilayers and, after micelle formation, stabilize membrane components in water. The balance supports membrane protein handling outside the intact bilayer.
A relatively mild action can help preserve the native conformations of membrane proteins rather than disrupting their functional structure extensively. Maintaining conformation is important because biochemical and structural analyses may depend on the protein retaining its biological activity. Lauryl maltoside is therefore useful when solubilization must be combined with continued examination of membrane protein properties.
Researchers apply lauryl maltoside at several stages, including membrane protein extraction, purification, and reconstitution. Extraction transfers proteins from lipid bilayers into an aqueous, micelle-supported environment, while purification handles those solubilized components. Reconstitution then supports placing membrane proteins into another membrane-like context, extending the technique beyond the initial isolation step.
Solubilized membrane proteins can be examined through biochemical or structural analyses. The surfactant helps keep membrane components dispersed in aqueous solution, making them more accessible for these investigations than they would be within an intact lipid bilayer. Its use can also support assessment of proteins while their native conformations or biological activities remain comparatively well preserved.
Biologists may choose it when a study requires membrane disruption but also benefits from preserving membrane protein conformation and activity. Its applications span cell biology and biochemistry, particularly experiments involving extraction, purification, reconstitution, or analysis of membrane proteins. The choice is especially relevant when maintaining biologically meaningful protein behavior is important to interpreting experimental results.