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PCR Mutagenesis, Cloning, Expression, Fast Protein Purification Protocols and Crystallization of the Wild Type and Mutant Forms of Tryptophan Synthase
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Biochimie
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Journal JoVE Biochimie
PCR Mutagenesis, Cloning, Expression, Fast Protein Purification Protocols and Crystallization of the Wild Type and Mutant Forms of Tryptophan Synthase

PCR Mutagenesis, Cloning, Expression, Fast Protein Purification Protocols and Crystallization of the Wild Type and Mutant Forms of Tryptophan Synthase

DOI:
10.3791/61839-v

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09:31 min

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September 26, 2020

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, , ,
1Department of Chemistry,University of California-Riverside, 2Department of Biochemistry,University of California-Riverside

Chapitres

  • 00:04Introduction
  • 00:44Purification of Wild Type or Mutant Form of α2β2 StTS Complex
  • 03:53Optimized Crystallization for Wild Type and Mutant Form of the α2β2 StTS Comple
  • 06:49Results: Purification of the α- and β -Subunits of the Tryptophan Synthase and the Wild Type and Mutant α2β2 StTS Complexes
  • 08:50Conclusion

Summary

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Traduction automatique

This article presents a series of consecutive methods for the expression and purification of Salmonella typhimurium tryptophan synthase comp this protocol a rapid system to purify the protein complex in a day. Covered methods are site-directed mutagenesis, protein expression in Escherichia coli, affinity chromatography, gel filtration chromatography, and crystallization.

Tags

PCR MutagenesisCloningExpressionProtein PurificationTryptophan SynthaseSalmonella TyphimuriumAmmonium Sulfate FractionationSize Exclusion ChromatographySDS-PAGEProtein ConcentrationCrystallization

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