Related Experiment Videos
Affinity purification of recombinant trypsinogen using immobilized ecotin
Z Lengyel1, G Pál, M Sahin-Tóth
1NAVIX, Inc., Camarillo, California 93012, USA.
Protein Expression and Purification
|March 31, 1998
Summary
Purifying inactive serine protease precursors (zymogens) is challenging. Immobilized ecotin, a unique inhibitor, offers a superior method for purifying trypsinogen and other zymogens.
Area of Science:
- Biochemistry
- Protein Chemistry
- Enzymology
Background:
- Affinity purification of serine protease zymogens is difficult using standard protease inhibitors.
- This is due to weak interactions between inhibitors and the inactive zymogen forms.
Purpose of the Study:
- To develop a more effective affinity matrix for purifying serine protease zymogens.
- To investigate the utility of immobilized ecotin for this purpose.
Main Methods:
- Immobilization of ecotin, a protease inhibitor from Escherichia coli.
- Testing the immobilized ecotin as an affinity matrix for purifying serine protease zymogens, specifically trypsinogen.
Main Results:
- Immobilized ecotin demonstrated superior performance as an affinity matrix.
- Successfully purified trypsinogen, indicating potential for other serine protease zymogens.
Conclusions:
- Immobilized ecotin is an effective tool for the affinity purification of serine protease zymogens.
- This method overcomes limitations associated with conventional protease inhibitors.