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Using SecM Arrest Sequence as a Tool to Isolate Ribosome Bound Polypeptides
JoVE 杂志
生物学
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JoVE 杂志 生物学
Using SecM Arrest Sequence as a Tool to Isolate Ribosome Bound Polypeptides
DOI:

09:42 min

June 19, 2012

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Chapters

  • 00:05Title
  • 03:31DNA Template Preparation, In vitro Transcription and Translation
  • 05:34Isolation of Nascent Polypeptides and Analysis by Tris-tricine SDS PAGE
  • 07:17Representative RNC Results
  • 07:57Conclusion

Summary

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We describe here a technique that is now routinely used to isolate stably bound ribosome nascent chain complexes (RNCs). This technique takes advantage of the discovery that a 17 amino acid long SecM "arrest sequence" can halt translation elongation in a prokaryotic (E. coli) system, when inserted into (or fused to the C-terminus) of virtually any protein.

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