Hemagglutinin Clusters in the Plasma Membrane Are Not Enriched with Cholesterol and Sphingolipids
Abstract
The clusters of the influenza envelope protein, hemagglutinin, within the plasma membrane are hypothesized to be enriched with cholesterol and sphingolipids. Here in this paper, we directly tested this hypothesis by using high-resolution secondary ion mass spectrometry to image the distributions of antibody-labeled hemagglutinin and isotope-labeled cholesterol and sphingolipids in the plasma membranes of fibroblast cells that stably express hemagglutinin. We found that the hemagglutinin clusters were neither enriched with cholesterol nor colocalized with sphingolipid domains. Thus, hemagglutinin clustering and localization in the plasma membrane is not controlled by cohesive interactions between hemagglutinin and liquid-ordered domains enriched with cholesterol and sphingolipids, or from specific binding interactions between hemagglutinin, cholesterol, and/or the majority of sphingolipid species in the plasma membrane.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE; National Science Foundation (NSF); National Institutes of Health (NIH)
- OSTI Identifier:
- 1246558
- Alternate Identifier(s):
- OSTI ID: 1396214
- Report Number(s):
- LLNL-JRNL-698175
Journal ID: ISSN 0006-3495; S0006349515002246; PII: S0006349515002246
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Published Article
- Journal Name:
- Biophysical Journal
- Additional Journal Information:
- Journal Name: Biophysical Journal Journal Volume: 108 Journal Issue: 7; Journal ID: ISSN 0006-3495
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
Citation Formats
Wilson, Robert L., Frisz, Jessica F., Klitzing, Haley A., Zimmerberg, Joshua, Weber, Peter K., and Kraft, Mary L. Hemagglutinin Clusters in the Plasma Membrane Are Not Enriched with Cholesterol and Sphingolipids. United States: N. p., 2015.
Web. doi:10.1016/j.bpj.2015.02.026.
Wilson, Robert L., Frisz, Jessica F., Klitzing, Haley A., Zimmerberg, Joshua, Weber, Peter K., & Kraft, Mary L. Hemagglutinin Clusters in the Plasma Membrane Are Not Enriched with Cholesterol and Sphingolipids. United States. https://doi.org/10.1016/j.bpj.2015.02.026
Wilson, Robert L., Frisz, Jessica F., Klitzing, Haley A., Zimmerberg, Joshua, Weber, Peter K., and Kraft, Mary L. Wed .
"Hemagglutinin Clusters in the Plasma Membrane Are Not Enriched with Cholesterol and Sphingolipids". United States. https://doi.org/10.1016/j.bpj.2015.02.026.
@article{osti_1246558,
title = {Hemagglutinin Clusters in the Plasma Membrane Are Not Enriched with Cholesterol and Sphingolipids},
author = {Wilson, Robert L. and Frisz, Jessica F. and Klitzing, Haley A. and Zimmerberg, Joshua and Weber, Peter K. and Kraft, Mary L.},
abstractNote = {The clusters of the influenza envelope protein, hemagglutinin, within the plasma membrane are hypothesized to be enriched with cholesterol and sphingolipids. Here in this paper, we directly tested this hypothesis by using high-resolution secondary ion mass spectrometry to image the distributions of antibody-labeled hemagglutinin and isotope-labeled cholesterol and sphingolipids in the plasma membranes of fibroblast cells that stably express hemagglutinin. We found that the hemagglutinin clusters were neither enriched with cholesterol nor colocalized with sphingolipid domains. Thus, hemagglutinin clustering and localization in the plasma membrane is not controlled by cohesive interactions between hemagglutinin and liquid-ordered domains enriched with cholesterol and sphingolipids, or from specific binding interactions between hemagglutinin, cholesterol, and/or the majority of sphingolipid species in the plasma membrane.},
doi = {10.1016/j.bpj.2015.02.026},
journal = {Biophysical Journal},
number = 7,
volume = 108,
place = {United States},
year = {Wed Apr 01 00:00:00 EDT 2015},
month = {Wed Apr 01 00:00:00 EDT 2015}
}
https://doi.org/10.1016/j.bpj.2015.02.026
Web of Science
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