Title |
Modular Detection of GFP-Labeled Proteins for Rapid Screening by Electron Microscopy in Cells and Organisms
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Published in |
Developmental Cell, November 2015
|
DOI | 10.1016/j.devcel.2015.10.016 |
Pubmed ID | |
Authors |
Nicholas Ariotti, Thomas E. Hall, James Rae, Charles Ferguson, Kerrie-Ann McMahon, Nick Martel, Robyn E. Webb, Richard I. Webb, Rohan D. Teasdale, Robert G. Parton |
Abstract |
Reliable and quantifiable high-resolution protein localization is critical for understanding protein function. However, the time required to clone and characterize any protein of interest is a significant bottleneck, especially for electron microscopy (EM). We present a modular system for enzyme-based protein tagging that allows for improved speed and sampling for analysis of subcellular protein distributions using existing clone libraries to EM-resolution. We demonstrate that we can target a modified soybean ascorbate peroxidase (APEX) to any GFP-tagged protein of interest by engineering a GFP-binding peptide (GBP) directly to the APEX-tag. We demonstrate that APEX-GBP (1) significantly reduces the time required to characterize subcellular protein distributions of whole libraries to less than 3 days, (2) provides remarkable high-resolution localization of proteins to organelle subdomains, and (3) allows EM localization of GFP-tagged proteins, including proteins expressed at endogenous levels, in vivo by crossing existing GFP-tagged transgenic zebrafish lines with APEX-GBP transgenic lines. |
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Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 5 | 14% |
United States | 4 | 11% |
Australia | 3 | 8% |
Japan | 2 | 5% |
Saint Lucia | 1 | 3% |
France | 1 | 3% |
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Netherlands | 1 | 3% |
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Other | 2 | 5% |
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Demographic breakdown
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---|---|---|
Members of the public | 26 | 70% |
Scientists | 8 | 22% |
Science communicators (journalists, bloggers, editors) | 3 | 8% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 2 | <1% |
United Kingdom | 2 | <1% |
Germany | 1 | <1% |
Sweden | 1 | <1% |
Singapore | 1 | <1% |
Chile | 1 | <1% |
China | 1 | <1% |
Belgium | 1 | <1% |
Spain | 1 | <1% |
Other | 1 | <1% |
Unknown | 262 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 66 | 24% |
Researcher | 55 | 20% |
Student > Master | 20 | 7% |
Student > Bachelor | 19 | 7% |
Professor > Associate Professor | 15 | 5% |
Other | 58 | 21% |
Unknown | 41 | 15% |
Readers by discipline | Count | As % |
---|---|---|
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Biochemistry, Genetics and Molecular Biology | 86 | 31% |
Neuroscience | 16 | 6% |
Immunology and Microbiology | 8 | 3% |
Medicine and Dentistry | 6 | 2% |
Other | 20 | 7% |
Unknown | 49 | 18% |