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对链球菌-Tactin树脂交联的双(磺基)辛二酸酯(BS3)双链球菌标记蛋白及其复合物的一步纯化
JoVE Journal
Biology
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JoVE Journal Biology
One-step Purification of Twin-Strep-tagged Proteins and Their Complexes on Strep-Tactin Resin Cross-linked With Bis(sulfosuccinimidyl) Suberate (BS3)
DOI:

18:27 min

April 20, 2014

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Chapters

  • 00:05Title
  • 00:11Introduction
  • 01:32Overview
  • 01:37Competitive Elution with Biotin
  • 02:44Denaturing Elution with SDS
  • 03:26Chemical Cross-linking of the Resin
  • 04:10Protocol
  • 04:13Cross-linking of the Resin with BS3
  • 07:22Quenching of the Cross-linking Reaction
  • 09:50Binding of the Bait Protein and Associated Complexes to the Resin
  • 12:18Washing of the Resin
  • 14:23Elution of Specific Protein Complexes
  • 15:32Representative Results
  • 17:18Conclusion

Summary

Automatic Translation

的方法被描述为在链亲和素修饰的双链球菌标记的融合蛋白和它们的特定配合物的净化效率(链球菌-Tactin)树脂共价交联的双(硫代琥珀酰亚胺基)辛二酸酯(BS3)。该方法具有速度快,良好的靶蛋白回收率和纯度高的优点,并且与随后的分析通过质谱兼容。

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