Twin-Strep Tagged Protein Pull Down by Strep-Tactin Sepharose Resin

Stanford University
Biochemistry
Senior Research Scientist

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Company:

IBA Lifesciences

Product Name:

Strep-Tactin Sepharose resin

Catalog Number:

2-1201-010

Info: Supplier Page 

The WNT pathway is essential for embryonic development and adult tissue homeostasis. Deregulation of this pathway results in cancers of the stomach, intestine, breast, etc. I am interested in studying the molecular mechanism of oncogenic WNT signal transduction to identify potential targets for therapeutic intervention of colon cancer. The goal of this experiment is to determine if Twin-Strep tagged AXIN1 expressed in Sf9 insect cells can be purified by Strep-Tactin resin.

Experimental Design and Results Summary

Application

Protein purification

Starting Material

Sf9 cells expressing Twin-Strep tagged AXIN1

Tips

Manufacturer's instructions were followed in this experiment.

Results Summary

Sf9 cells expressing Twin-Strep tagged AXIN1 were lysed and clarified lysates (1-8 mg) were incubated with 50 µL of pre-equilibrated Strep-Tactin Sepharose resin. The incubation time was 2 h at 4 deg C. Protein complexes were eluted in 2x SDS sample buffer and resolved on a 4-12% Bis-Tris gel. Immunoblotting was performed with an AXIN1 antibody. Good enrichment of bait was observed.

DOI or PMID #

N/A

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Summary

The Good

Good purification resin for Twin-Strep tagged protein purification.

The Bad

None.

The Bottom Line

One of the best reagent in the market for Twin-Strep tagged protein purification.

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