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Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies
JoVE Journal
Chemistry
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JoVE Journal Chemistry
Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies
DOI:

12:05 min

March 06, 2013

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Chapters

  • 00:05Title
  • 02:06Inclusion Body Preparation and Nickel Matrix Binding
  • 03:55On-column Oxidative Crosslinking
  • 04:50TFA Elution and Quantitation
  • 05:52CNBr Digestion
  • 07:54Reversed-phase HPLC Purification of Disulfide-crosslinked Peptide Complexes
  • 09:06TrpLE fusions: Transmembrane Peptide Complexes Expressed in Bacteria
  • 11:19Conclusion

Summary

Automatic Translation

Biophysical and biochemical studies of interactions among membrane-embedded protein domains face many technical challenges, the first of which is obtaining appropriate study material. This article describes a protocol for producing and purifying disulfide-stabilized transmembrane peptide complexes that are suitable for structural analysis by solution nuclear magnetic resonance (NMR) and other analytical applications.

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