Detecting Protein Subcellular Localization by Green Fluorescence Protein Tagging and 4',6-Diamidino-2-phenylindole Staining in <em>Caenorhabditis elegans</em>

Jun Liang; Aijo De Castro; Lizette Flores

doi:10.3791/57914

Detecting Protein Subcellular Localization by Green Fluorescence Protein Tagging and 4′,6-D...

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Detecting Protein Subcellular Localization by Green Fluorescence Protein Tagging and 4′,6-Diamidino-2-phenylindole Staining in Caenorhabditis elegans

Detecting Protein Subcellular Localization by Green Fluorescence Protein Tagging and 4′,6-Diamidino-2-phenylindole Staining in Caenorhabditis elegans

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09:36 min

July 30, 2018

DOI: 10.3791/57914-v

Jun Liang¹, Aijo De Castro¹, Lizette Flores¹

¹Department of Science,Borough of Manhattan Community College/CUNY

Overview

This protocol demonstrates how to track a protein nuclear translocation under heat stress using a GFP fusion protein as a marker and DAPI staining. The method is fast and efficient, allowing simultaneous observation of nuclear staining and sub-cellular localization changes.

Key Study Components

Area of Science

Cell Biology
Neuroscience
Genetics

Background

Understanding protein localization is crucial in cell biology.
Heat stress can affect protein translocation and localization.
GFP fusion proteins are valuable markers for tracking proteins.
DAPI staining provides a method for visualizing nuclei.

Purpose of Study

To track protein nuclear translocation under heat stress.
To utilize GFP as a marker for protein localization.
To demonstrate a rapid protocol for DAPI staining.

Methods Used

Generation of extrachromosomal arrays with translational constructs.
Exposure of C.elegans to gamma radiation for integration.
Selection of stably expressed lines with marker proteins.
Simultaneous observation of nuclear and sub-cellular localization.

Main Results

Successful tracking of nuclear translocation under heat stress.
Efficient visualization of GFP and DAPI staining.
Demonstrated the effectiveness of the protocol in C.elegans.
Provided insights into protein localization dynamics.

Conclusions

The protocol is a valuable tool for studying protein dynamics.
Fast and efficient methods enhance research in cell biology.
Future applications may extend to other stress conditions.

Frequently Asked Questions

What is the main advantage of this technique?

The technique is fast and allows simultaneous observation of nuclear staining and sub-cellular localization changes.

How are the extrachromosomal arrays generated?

They can be generated with translational constructs of target genes or obtained from public resources like the Caenorhabditis Genetic Center.

What role does gamma radiation play in this protocol?

Gamma radiation is used to integrate the extrachromosomal lines into the genome of C.elegans.

What markers are used in this study?

Marker proteins such as GFP or roller are used to visualize protein expression.

Can this method be applied to other organisms?

While this protocol is demonstrated in C.elegans, similar methods may be adapted for other model organisms.

This protocol demonstrates how to track a protein nuclear translocation under heat stress by using a green fluorescence protein (GFP) fusion protein as a marker and 4',6-diamidino-2-phenylindole (DAPI) staining. The DAPI staining protocol is fast and preserves the GFP and protein subcellular localization signals.

This method can help answer key questions in the C.elegans field, such as cell biology. The main advantage of this technique is that it is fast and efficient to obtain signals of nuclear staining, GFP, and sub-cellular localization changes simultaneously. To begin, generate an extrachromosomal array align with a translational construct of target genes.

Alternatively, obtain such lines from the Caenorhabditis Genetic Center, which is a public resource for C.elegans research. Or, from a previously a previously published research laboratory. After exposing worms to gamma radiation to integrate the extrachromosomal lines into the genome, select the stably expressed lines so that each animal expresses a marker protein such as a GFP or roller.

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