PROCESS FOR PURIFYING PROTEINS

The present invention provides method for purifying a recombinant protein from a gram-negative bacterial host cell sample or extract thereof wherein said host cell expresses a recombinant protein and a recombinant disulphide isomerase DsbC; comprising: a. adjusting the pH of the host cell sample or...

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1. Verfasser: WILD, GAVIN BARRY
Format: Patent
Sprache:hrv ; eng
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Beschreibung
Zusammenfassung:The present invention provides method for purifying a recombinant protein from a gram-negative bacterial host cell sample or extract thereof wherein said host cell expresses a recombinant protein and a recombinant disulphide isomerase DsbC; comprising: a. adjusting the pH of the host cell sample or extract thereof to a pH of 5 or less to precipitate the recombinant disulphide isomerase; and b. separating precipitated recombinant disulphide isomerase DsbC from the recombinant protein to produce a recombinant protein sample.