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Saccharomyces cerevisiae Metabolic Labeling with 4-thiouracil and the Quantification of Newly Synthesized mRNA As a Proxy for RNA Polymerase II Activity
JoVE Journal
Genetics
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JoVE Journal Genetics
Saccharomyces cerevisiae Metabolic Labeling with 4-thiouracil and the Quantification of Newly Synthesized mRNA As a Proxy for RNA Polymerase II Activity
DOI:

09:21 min

October 22, 2018

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Chapters

  • 00:04Title
  • 00:41Cell Culturing
  • 01:374tU Labeling with S. pombe as a Spike-in
  • 03:20RNA Extraction and DNase Treatment
  • 04:30Thiol-specific Biotinylation of Newly Synthesized RNA
  • 06:05Purification of Newly Synthesized Fraction from Total and Unlabeled RNA Using Streptavidin-coated Magnetic Beads
  • 07:18Results: Quantification of Newly Synthesized mRNA as a Proxy for RNA Polymerase II Activity
  • 08:52Conclusion

Summary

Automatic Translation

The protocol described here is based on the genome-wide quantification of newly synthesized mRNA purified from yeast cells labeled with 4-thiouracil. This method allows to measure mRNA synthesis uncoupled from mRNA decay and, thus, provides an accurate measurement of RNA polymerase II transcription.

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