High-throughput protein purification using an automated set-up for high-yield affinity chromatography
2006 (English)In: Protein Expression and Purification, ISSN 1046-5928, E-ISSN 1096-0279, Vol. 46, no 2, 173-178 p.Article in journal (Refereed) Published
One of the key steps in high-throughput protein production is protein purification. A newly developed high-yield protein purification and isolation method for laboratory scale use is presented. This procedure allows fully automated purification of up to 60 cell lysates with milligram yields of pure recombinant protein in 18.5 h. The method is based on affinity chromatography and has been set up on an instrument that utilizes positive pressure for liquid transfer through columns. A protocol is presented that includes all steps of equilibration of the chromatography resin, load of sample, wash, and elution without any manual handling steps. In contrast to most existing high-throughput protein purification procedures, positive pressure is used for liquid transfer rather than vacuum. Positive pressure and individual pumps for each liquid channel contribute to controlled flow rates and eliminate the risk of introducing air in the chromatography resin and therefore ensure stable chromatography conditions. The procedure is highly reproducible and allows for high protein yield and purity.
Place, publisher, year, edition, pages
2006. Vol. 46, no 2, 173-178 p.
high-throughput, protein purification, IMAC, recombinant protein, proteomics
IdentifiersURN: urn:nbn:se:kth:diva-15606DOI: 10.1016/j.pep.2005.12.010ISI: 000236828100001OAI: oai:DiVA.org:kth-15606DiVA: diva2:333648
QC 201005252010-08-052010-08-052010-11-02Bibliographically approved