Vitamin E-based glycoside amphiphiles for membrane protein structural studies
File(s)VEGs_manuscript_Sym.docx (840.75 KB)
Accepted version
Author(s)
Type
Journal Article
Abstract
Membrane proteins play critical roles in a variety of cellular processes. For a detailed molecular level understanding of their biological functions and roles in disease, it is necessary to extract them from the native membranes. While the amphipathic nature of these bio-macromolecules presents technical challenges, amphiphilic assistants such as detergents serve as useful tools for membrane protein structural and functional studies. Conventional detergents are limited in their ability to maintain the structural integrity of membrane proteins and thus it is essential to develop novel agents with enhanced properties. Here, we designed and characterized a novel class of amphiphiles with vitamin E (i.e., α-tocopherol) as the hydrophobic tail group and saccharide units as the hydrophilic head group. Designated vitamin E-based glycosides (VEGs), these agents were evaluated for their ability to solubilize and stabilize a set of membrane proteins. VEG representatives not only conferred markedly enhanced stability to a diverse range of membrane proteins compared to conventional detergents, but VEG-3 also showed notable efficacy toward stabilization and visualization of a membrane protein complex. In addition to hydrophile–lipophile balance (HLB) of detergent molecules, the chain length and molecular geometry of the detergent hydrophobic group seem key factors in determining detergent efficacy for membrane protein (complex) stability.
Date Issued
2018-04-14
Date Acceptance
2018-03-13
Citation
ORGANIC & BIOMOLECULAR CHEMISTRY, 2018, 16 (14), pp.2489-2498
ISSN
1477-0520
Publisher
Royal Society of Chemistry
Start Page
2489
End Page
2498
Journal / Book Title
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume
16
Issue
14
Copyright Statement
© 2018 The Royal Society of Chemistry
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000429204000016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Chemistry, Organic
Chemistry
MUSCARINIC ACETYLCHOLINE-RECEPTOR
MALEIC ACID COPOLYMER
CRYSTAL-STRUCTURE
BETA(2)-ADRENERGIC RECEPTOR
ALLOSTERIC MODULATION
FACIAL AMPHIPHILES
ELECTRON-TRANSFER
STABILIZATION
CRYSTALLIZATION
SOLUBILIZATION
Publication Status
Published
Date Publish Online
2018-03-13