摘要:
A process of purifying G-CSF (Granulocyte Colony Stimulating Factor) in a purification sequence employing chromatography characterized in that - at least one chromatography is performed using a multimodal resin containing a negatively charged 2-(benzoylamino) butanoic acid ligand - G-CSF binds to the multimodal resin at a pH between 4 to 6.2, and - the G-CSF is eluting at a pH 5.5 to 6.5 and wherein the elution is performed with arginine having a concentration in the range of from 0.1 M to 2.0 M, - optionally in combination with an affinity ligand chromatography step employing a yeast derived F ab fragment directed towards the G-CSF.
摘要:
A method for stabilising a human blood protein or human blood plasma protein with a molecular weight of > 10 KDa by adding melezitose to a solution comprising the human blood protein or human blood plasma protein with a molecular weight of > 10 KDa.
摘要:
The invention provides a method for separating a Factor VIII (FVIII) protein from a first composition comprising the FVIII protein, which contains at least the light chain of FVIII, and a von-Willebrand-Factor (vWF) protein which comprises at least the FVIII binding domain of vWF, wherein the FVIII protein can form a complex with the vWF protein, the method comprising the steps: contacting the first composition with an affinity resin comprising a ligand and a matrix, wherein the ligand has an affinity to the light chain of FVIII, and separating the affinity resin from the mixture to obtain a modified first composition and a second composition, wherein the second composition contains the affinity resin, and a complex of the FVIII protein and the vWF protein.
摘要:
A composition comprising a complex of Factor VIII and one or more Von Willebrand Factor peptides, wherein the Von Willebrand Factor peptides comprise at least the amino acids 764 to 1035 and 1691 to 1905 of SEQ ID No. 1 but not amino acids 2255 to 2645 of SEQ ID No. 1.
摘要翻译:一种组合物,其包含因子VIII和一种或多种Von Willebrand因子肽的复合物,其中所述Von Willebrand因子肽至少包含SEQ ID No.1的氨基酸764至1035和1691至1905,但不包含SEQ ID No.1的氨基酸2255至2645 SEQ ID No.1。
摘要:
A process for purifying fibrinogen from a fibrinogen containing source by precipitation of fibrinogen by a precipitating agent from a fibrinogen containing solution in the presence of one or more chelating agent(s) and removal of the supernatant from the fibrinogen paste, characterised in that fibrinogen is extracted from the paste forming a liquid fraction containing fibrinogen, and an undissolved residue, which is separated from the liquid.
摘要:
A process of purifying a Growth Factor Protein in a purification sequence employing chromatography characterized in that: - at least one chromatography is performed using a multimodal resin; - the Growth Factor Protein binds to the multimodal resin at a pH between 4 to 6.2, and the Growth Factor Protein is eluting at a pH > 6.3, and the elution of Growth Factor Protein is improved by addition of arginine and/or NaCI to the eluting buffer. - The multimodal resin step is followed by a yeast derived affinity ligand resin step, which results of a purity of the product >90%.
摘要:
A process for the preparation of a solution comprising substantially pure antithrombin-III (AT-III), or an isoform thereof, said process comprising the use of a cation exchange gel wherein the cation exchanger groups are attached to the gel matrix via a linear polymer chain.
摘要:
Eine Vorrichtung zur Vireninaktivierung in absorbierenden Flüssigkeiten weist einen Rotor (10) und ein den Rotor (10) umgebendes Gehäuse (12) auf. Hierdurch ist zwischen dem Rotor (10) und dem Gehäuse (12) ein Spalt ausgebildet, durch den die zu behandelnde Flüssigkeit geleitet wird. Innerhalb des Rotors (10) ist eine Strahlungserzeugungseinrichtung (50) zur Erzeugung von vireninaktivierender Strahlung angeordnet, Zumindest ein Teil der Mantelfläche (14) des Rotors (10) ist aus strahlungsdurchlässigem Material wie Quarzglas hergestellt.
摘要:
A process for preparing A1AT from A1AT-containing solutions, comprising the following steps: (a) subjecting an A1AT-containing solution to ion-exchange chromatography; (b) adding detergents and optionally a solvent for inactivating lipid-enveloped viruses; (c) followed by increasing the salt concentration to salt out the detergents. A1AT having a purity of > 90% with an activity of > 0.8 PEU/mg in its active form.
摘要:
The present invention provides a method for increasing the yield of a protein produced by cultivating eukaryotic cells and adding an ionic substance to the culture medium prior to harvest of the protein. Suitable ionic substances are the salts of the Hofmeister series and amino acids.