GEREINIGTES REKOMBINANTES INTERLEUKIN-2 UND VERFAHREN ZU DESSEN RUECKGEWINNUNG UND REINIGUNG

A process for recovering microbially produced IL-2 in a highly pure form from the cellular material of the microorganism that produced it comprising: disrupting the cell membranes of the microorganisms; extracting the disruptate with a chaotropic agent, such as urea, that selectively extracts microb...

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Bibliographische Detailangaben
Hauptverfasser: WILSON, KENNETH, KOTHS, KIRSTON EDWARD, THOMSON, JAMES WILLIAM, HANISCH, WOLFGANG HELMUT, KUNITANI, MICHAEL
Format: Patent
Sprache:eng ; ger
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Zusammenfassung:A process for recovering microbially produced IL-2 in a highly pure form from the cellular material of the microorganism that produced it comprising: disrupting the cell membranes of the microorganisms; extracting the disruptate with a chaotropic agent, such as urea, that selectively extracts microbial proteins from the cellular material; solubilizing the IL-2 in the solid phase of the extraction mixture with an aqueous solution of a solubilizing agent, such as SDS, containing a reducing agent; and separating the IL-2 from the resulting solution by an optional extraction with 2-butanol or 2-methyl-2-butanol followed by gel filtration chromatography, oxidizing the IL-2 and purifying the oxidized IL-2 by RP-HPLC.