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Updated: Feb 24, 2026
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Combined Nucleotide and Protein Extractions in Caenorhabditis elegans
Published on: March 17, 2019
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A pilot study for whole proteome tagging in C. elegans
Matthew Eroglu1, Oliver Hobert1
1Columbia University, Department of Biological Sciences, Howard Hughes Medical Institute, New York, NY 10027.
Biorxiv : the Preprint Server for Biology
|February 23, 2026
Summary
This pilot study efficiently tagged 30 essential genes in C. elegans using three distinct fluorescent proteins. The approach revealed novel patterns in protein expression and localization, paving the way for whole-genome tagging.
Area of Science:
- Genomics
- Molecular Biology
- Biochemistry
Background:
- Fluorescent tagging of all proteins in an animal genome can reveal novel expression and localization patterns.
- Scaling this approach requires parallel introduction of multiple, spectrally distinct fluorophore tags.
Purpose of the Study:
- To perform a pilot study in C. elegans to tag 30 genetic loci with three different fluorophores simultaneously.
- To explore challenges related to gene function disruption and tagged protein visibility.
Main Methods:
- Selected 30 essential genes in C. elegans based on transcriptomics for varied expression levels.
- Introduced three spectrally distinct fluorophore tags in parallel at these genetic loci.
Main Results:
- Demonstrated high efficiency of the simultaneous multi-fluorophore tagging approach.
- Uncovered previously unknown cellular sites of expression and subcellular protein localization patterns.
Conclusions:
- This pilot study validates the efficiency and utility of parallel multi-fluorophore tagging.
- Motivates scaling this technique for comprehensive whole-genome protein analysis.
