Abstract
The use of lipid monolayers to bind and adsorb proteins is an attractive and increasingly important method for generating high localized concentrations of oriented proteins and protein complexes. These bound proteins can be imaged directly, or they may form 2-D crystalline arrays that are amenable to structure determination by single particle analysis or 2-D electron crystallography. 2-D crystals grown by this technique can also be used to initiate the growth of 3-D crystals for X-ray diffraction analysis. Many derivatized lipids have been prepared for use with this technique, incorporating a diverse range of ligands to enable binding to specific proteins. Synthetic lipids containing functionalized head groups that chelate Ni2+ or Cu2+ have also been prepared to bind and orient expressed proteins that contain His-tags. Protein-binding monolayer-forming lipids generally consist of two distinct components: (1) a branched hydrocarbon tail to confer fluidity to the monolayer and (2) a functionalized hydrophilic head group to facilitate binding of protein molecules at the air-water interface. Newer examples of these compounds also incorporate perfluorinated hydrocarbon moieties to confer detergent resistance to these lipids. This review focuses on synthetic approaches to functionalized lipids for protein monolayer crystallizations.
Current Organic Chemistry
Title: Synthetic Approaches to Functionalized Lipids for Protein Monolayer Crystallizations
Volume: 13 Issue: 14
Author(s): Waleed M. Hussein, Benjamin P. Ross, Michael J. Landsberg, Ben Hankamer and Ross P. McGeary
Affiliation:
Abstract: The use of lipid monolayers to bind and adsorb proteins is an attractive and increasingly important method for generating high localized concentrations of oriented proteins and protein complexes. These bound proteins can be imaged directly, or they may form 2-D crystalline arrays that are amenable to structure determination by single particle analysis or 2-D electron crystallography. 2-D crystals grown by this technique can also be used to initiate the growth of 3-D crystals for X-ray diffraction analysis. Many derivatized lipids have been prepared for use with this technique, incorporating a diverse range of ligands to enable binding to specific proteins. Synthetic lipids containing functionalized head groups that chelate Ni2+ or Cu2+ have also been prepared to bind and orient expressed proteins that contain His-tags. Protein-binding monolayer-forming lipids generally consist of two distinct components: (1) a branched hydrocarbon tail to confer fluidity to the monolayer and (2) a functionalized hydrophilic head group to facilitate binding of protein molecules at the air-water interface. Newer examples of these compounds also incorporate perfluorinated hydrocarbon moieties to confer detergent resistance to these lipids. This review focuses on synthetic approaches to functionalized lipids for protein monolayer crystallizations.
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Cite this article as:
Hussein M. Waleed, Ross P. Benjamin, Landsberg J. Michael, Hankamer Ben and McGeary P. Ross, Synthetic Approaches to Functionalized Lipids for Protein Monolayer Crystallizations, Current Organic Chemistry 2009; 13 (14) . https://dx.doi.org/10.2174/138527209789055081
DOI https://dx.doi.org/10.2174/138527209789055081 |
Print ISSN 1385-2728 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5348 |
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The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
Chemistry and Biology of Carbohydrates
Carbohydrates are one of the most abundant natural products and are considered to be extremely important biomolecules for their ever-increasing impact on chemistry and biology. Their role in several important biological processes, notably energy storage, transport, modulation of protein function, intercellular adhesion, malignant transformation, signal transduction, viral, and bacterial cell ...read more
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