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Updated: Jul 13, 2026
11:55
Examining the Conformational Dynamics of Membrane Proteins in situ with Site-directed Fluorescence Labeling
Published on: May 29, 2011
The secretory membrane system studied in real-time. Robert Feulgen Prize Lecture, 2001
1Cell Biology and Metabolism Branch, NIH/NICHD, Bethesda, MD 20892-5430, USA. jlippin@helix.nih.gov
Histochemistry and Cell Biology
|October 31, 2001
Summary
Green fluorescent protein (GFP) from jellyfish enables direct observation of protein dynamics in living cells. This revolutionary tool provides new insights into the secretory pathway and organelle maintenance.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Green fluorescent protein (GFP) from Aequorea victoria offers unprecedented visualization capabilities for cellular processes.
- Traditional methods for studying protein localization and dynamics relied on indirect genetic, biochemical, or immunolabeling approaches.
Discussion:
- GFP tagging allows real-time tracking of protein life history and pathways within living cells.
- Its application to the secretory membrane system illuminates protein and lipid transport to the cell surface.
Key Insights:
- GFP enables direct observation of protein dynamics, revolutionizing cell biology research.
- Studies using GFP provide critical new data on organelle maintenance and biogenesis.
- The origin, pathway, and fate of secretory transport intermediates are now more clearly understood.
Outlook:
- Further applications of GFP and its variants will continue to advance our understanding of cellular mechanisms.
- GFP-based research is crucial for dissecting complex cellular processes like protein secretion.
- Continued exploration of GFP's utility promises deeper insights into cellular organization and function.
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