Perspectives of immobilized-metal affinity chromatography
1National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia. vladka.gaberc.porekar@ki.si
Abstract:
Immobilized Metal-Affinity Chromatography (IMAC) represents a relatively new separation technique that is primarily appropriate for the purification of proteins with natural surface-exposed histidine residues and for recombinant proteins with engineered histidine tags or histidine clusters. Because the method has gained broad popularity in recent years, the main recent developments in the field of new sorbents, techniques and possible applications are discussed in this article. Advantages of the method and new prospects are described as well as the problems and concerns that appear when the method is to be used for production of pharmaceutical-grade proteins.
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