The DOI matches its Crossref record; 88 of the 88 references it cites were found in a registry or an index.
Dynamics of putative raft-associated proteins at the cell surface
Open accessAbstract
Lipid rafts are conceptualized as membrane microdomains enriched in cholesterol and glycosphingolipid that serve as platforms for protein segregation and signaling. The properties of these domains in vivo are unclear. Here, we use fluorescence recovery after photobleaching to test if raft association affects a protein's ability to laterally diffuse large distances across the cell surface. The diffusion coefficients (D) of several types of putative raft and nonraft proteins were systematically measured under steady-state conditions and in response to raft perturbations. Raft proteins diffused freely over large distances (>4 μm), exhibiting Ds that varied 10-fold. This finding indicates that raft proteins do not undergo long-range diffusion as part of discrete, stable raft domains. Perturbations reported to affect lipid rafts in model membrane systems or by biochemical fractionation (cholesterol depletion, decreased temperature, and cholesterol loading) had similar effects on the diffusional mobility of raft and nonraft proteins. Thus, raft association is not the dominant factor in determining long-range protein mobility at the cell surface.
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Cites
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Lipid rafts, cholesterol, and the brain
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Self-citationEwers, H., Smith, A. E., Sbalzarini, I. F., Lilie, H., Koumoutsakos, P., & Helenius, A. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0504407102 · Cited by 264
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Metadata
- Authors
- Kenworthy, A. K., Nichols, B. J., Remmert, C. L., Hendrix, G. M., Kumar, M., Zimmerberg, J., & Lippincott-Schwartz, J.
- Venue
- The Journal of Cell Biology
- Publisher
- Rockefeller University Press
- Published
- 2004-06-01
- Volume
- 165
- Issue
- 5
- Pages
- 735-746
- ISSN
- 0021-9525 (ISSN-L)
- 1540-8140
- OpenAlex
- W2023993671
- Cited by
- 447
- References
- 88
- FWCI
- 14.00
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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