Related Experiment Video
Updated: May 9, 2026
10:36
Purification of Native Complexes for Structural Study Using a Tandem Affinity Tag Method
Published on: July 27, 2016
Purification of native Arp2/3 complex from bovine thymus
Lynda K Doolittle1, Michael K Rosen, Shae B Padrick
1Department of Biophysics, UT Southwestern Medical Center and Howard Hughes Medical Institute, Dallas, TX, USA.
Methods in Molecular Biology (Clifton, N.J.)
|July 23, 2013
Summary
A detailed method for purifying the Arp2/3 complex, an essential actin filament nucleator, from bovine thymus is described. This purification enables its use in crucial cell biology research, including motility and structural studies.
Area of Science:
- Cell Biology
- Biochemistry
- Structural Biology
Background:
- The Arp2/3 complex is a key regulator of actin dynamics.
- It plays critical roles in fundamental cellular processes such as cell motility and vesicle trafficking.
- Understanding its function requires purified, active complex for biochemical and structural studies.
Purpose of the Study:
- To describe a detailed and reproducible method for purifying the Arp2/3 complex.
- To provide a source of the Arp2/3 complex from mammalian tissue for various research applications.
- To facilitate further research into the Arp2/3 complex's functions.
Main Methods:
- Purification of the Arp2/3 complex from bovine thymus.
- Utilizing a multi-step biochemical purification strategy.
- Characterization of the purified complex for activity and integrity.
Main Results:
- Successfully purified the seven-polypeptide Arp2/3 complex from bovine thymus.
- The method yields a stable and functional Arp2/3 complex.
- The purified complex is suitable for downstream biochemical and structural analyses.
Conclusions:
- A robust method for Arp2/3 complex purification from mammalian tissue is established.
- This purification protocol supports diverse cell biology research applications.
- The availability of purified Arp2/3 complex is vital for advancing actin cytoskeleton research.
