Related Experiment Video
Updated: Aug 9, 2026
07:53
Activated Cross-linked Agarose for the Rapid Development of Affinity Chromatography Resins - Antibody Capture as a Case Study
Published on: August 16, 2019
[Adsorption condition optimization for anti-HBsAg Fab fragment separation and purification from E. coli using
Yu-xian Huang1, Rong-cheng Luo, Xue-mei Ding
1Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. hyx@nfhoc.com
Summary
Optimizing cation-exchange chromatography (Streamline SP) for anti-HBsAg Fab fragment purification from E. coli. The best adsorption occurred at pH 4.4 and 100-600 mmol/L ionic concentration, enabling efficient separation.
Area of Science:
- Biochemistry
- Protein Purification
- Chromatography
Background:
- Recombinant protein purification is crucial for therapeutic development.
- Anti-HBsAg Fab fragments are important biologics.
- E. coli is a common host for recombinant protein expression.
Purpose of the Study:
- To determine optimal adsorption conditions for Streamline SP cation-exchange media.
- To efficiently purify anti-HBsAg Fab fragments from E. coli.
Main Methods:
- Utilized test tube method to screen buffer pH and ionic concentration.
- Verified optimal conditions using cation-exchange chromatography with Streamline SP.
- Employed both prepacked and self-assembly SP columns for validation.
Main Results:
- Optimal adsorption achieved at pH 4.4.
- Optimal ionic concentration ranged from 100 to 600 mmol/L.
- Conditions were validated using SP prepacked and self-assembly columns.
Conclusions:
- The established optimal conditions are effective for Streamline SP.
- This method enables efficient separation and purification of anti-HBsAg Fab fragments.
- The findings contribute to optimizing bioprocesses for antibody fragments.
