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Anvendelse af Biolayer interferometri (BLI) til undersøgelse af protein-protein interaktioner i transkriptionen
JoVE Journal
Biochemistry
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JoVE Journal Biochemistry
Application of Biolayer Interferometry (BLI) for Studying Protein-Protein Interactions in Transcription
DOI:

07:18 min

July 26, 2019

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Chapters

  • 00:04Title
  • 00:59Biosensor Hydration and Assay Set-Up
  • 02:51Loading of Ligand onto Biosensor and Washing Away Additional Ligand
  • 03:43Association of Analyte to Ligand and Dissociation of Analyte from Ligand
  • 05:41Results: A 28 Amino Acid Middle Region of GrgA Binds σ28 In Vitro
  • 06:45Conclusion

Summary

Automatic Translation

Interaktioner af transkriptionsfaktorer (TFS) med RNA-polymerase er normalt undersøgt ved hjælp af rulle assays. Vi anvender en biolayer interferometri (bli) teknologi til at karakterisere samspillet mellem GRGA med Chlamydia RNA polymerase. Sammenlignet med rulle assays, registrerer bli real-time Association og dissociation, giver højere følsomhed, og er meget kvantitativ.

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