摘要:
A process of manufacturing a prion-free Vitamin K dependent Protein in a purification sequence employing chromatography characterized in that - at least one chromatography step is performed using a multimodal resin - providing a fraction containing Vitamin K dependent Protein in an aqueous solution; - contacting the fraction containing the Vitamin K dependent Protein with a multimodal resin at a pH between 6-9; - optionally washing the multimodal resin having the Vitamin K dependent Protein adsorbed with an aqueous washing buffer to wash away contaminants and retain the Vitamin K dependent Protein, before the Vitamin K dependent Protein is eluted; - the Vitamin K dependent Protein is eluting from the multimodal resin at a pH between 6 to 9 in a buffer comprising arginine; and - optionally collecting Vitamin K dependent Protein containing fractions in purified or enriched form.
摘要:
A process for isolation and purification of a target protein by chromatography wherein the chromatography removes or depletes prions (PrPsc ), comprising the steps of - contacting a potentially PrPsc-contaminated sample comprising a target protein with a multimodal chromatographic material; - setting buffer conditions so that the target protein is bound to the multimodal chromatographic material and whereas PrPsc is not binding to the multimodal chromatographic material; - followed by elution of the target protein.