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Updated: Feb 2, 2026
08:53
Assay to Measure Nucleocytoplasmic Transport in Real Time within Motor Neuron-like NSC-34 Cells
Published on: May 16, 2017
9.2K
Fluorescence-based quantification of nucleocytoplasmic transport.
Joshua B Kelley1, Bryce M Paschal2
1Department of Molecular and Biomedical Sciences, University of Maine, United States.
Methods (San Diego, Calif.)
|November 13, 2018
Summary
Studying protein localization in eukaryotic cells requires careful consideration of nuclear transport. This guide offers technical insights and quantification methods using fluorescence microscopy and ImageJ for analyzing protein distribution.
Area of Science:
- Cell Biology
- Molecular Biology
- Biophysics
Background:
- Eukaryotic cells sequester DNA in a nucleus, restricting DNA replication and transcription internally.
- Regulation of nuclear events depends on cytoplasmic processes like protein synthesis and signal transduction.
- Nuclear transport is crucial for diverse cellular activities, necessitating study of protein localization.
Purpose of the Study:
- To present technical considerations for studying nuclear and cytoplasmic protein localization.
- To provide guidance on quantifying protein levels using fluorescence microscopy and ImageJ software.
- To discuss the application of regions of interest and image segmentation for accurate protein localization quantification.
Main Methods:
- Utilizing fluorescence microscopy for visualizing protein distribution.
- Employing ImageJ software for quantitative analysis of protein levels.
- Implementing regions of interest and image segmentation for precise localization measurements.
Main Results:
- Detailed technical considerations for studying protein localization are presented.
- A methodological framework for quantifying protein levels in the nucleus and cytoplasm is provided.
- The utility of ImageJ software and specific image analysis techniques for localization studies is demonstrated.
Conclusions:
- Understanding nucleocytoplasmic transport is vital for controlling nuclear and cytoplasmic protein activity and levels.
- Quantitative analysis of protein localization offers critical insights into cellular function and biological output.
- The presented methods enhance the ability to study protein localization in eukaryotic cells.
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