简介：
Overview
This protocol describes the combinatorial use of ChIP-seq, 4sU-seq, total RNA-seq, and ribosome profiling for cell lines and primary cells. It enables tracking changes in transcription-factor binding, de novo transcription, RNA processing, turnover and translation over time, and displaying the overall course of events in activated and/or rapidly changing cells.
Key Study Components
Area of Science
- Neuroscience
- Cell Biology
- Molecular Biology
Background
- This method helps answer key questions in various biological fields.
- It allows for simultaneous display of multiple layers of gene regulation over time.
- Using the same pool of cells for each method is crucial for accurate results.
- The protocols involve manipulating cells at different time points.
Purpose of Study
- To delineate the main layers of RNA and DNA regulation.
- To uncover principal molecular mechanisms in response to stimuli or treatments.
- To analyze immune responses and molecular responses to drug treatments.
Methods Used
- 4sU-labeling for isolating newly transcribed RNA.
- Ribosome profiling to survey dynamic translatosome.
- ChIP-seq for mapping transcription factor binding across the genome.
- Sequencing of RNA samples to analyze gene regulation.
Main Results
- Simultaneous analysis of transcription-factor binding and RNA dynamics.
- Insights into RNA turnover and translation rates.
- Revealed the impact of transcription factor binding on gene expression.
- Provided a comprehensive view of cellular responses to stimuli.
Conclusions
- The combined approach enhances understanding of gene regulation.
- It offers a powerful tool for studying cellular responses in various contexts.
- Future applications could extend to other biological fields.
What is the main advantage of this technique?
It enables simultaneous display of multiple layers of gene regulation over time.
How are the cells prepared for sequencing?
Cells are manipulated, pooled, and divided for each assay before sequencing.
What does ChIP-seq reveal?
ChIP-seq maps the binding of transcription factors throughout the genome.
What is the role of 4sU-labeling?
4sU-labeling is used to isolate the most recently produced transcripts.
How does ribosome profiling contribute to the study?
Ribosome profiling surveys the dynamic translatosome and calculates translation rates.
What types of cells can be used with this protocol?
Both cell lines and primary cells can be used for this protocol.
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