Patent application number | Description | Published |
20090029918 | Method for producing mature VWF from VWF Pro-Peptide - The present invention relates to a method for producing a mature von Willebrand Factor (VWF) from von Willebrand Factor pro-peptide comprising the steps:
| 01-29-2009 |
20090181423 | SUBSTANTIALLY ANIMAL PROTEIN-FREE RECOMBINANT FURIN AND METHODS FOR PRODUCING SAME - The present invention relates to recombinant furin (rFurin) and methods for producing rFurin. More specifically, the invention relates to substantially animal protein-free rFurin and methods for producing substantially animal protein-free rFurin. | 07-16-2009 |
20100051550 | METHODS OF CONCENTRATING SHEAR-SENSITIVE BIOPOLYMERS - The invention relates generally to methods of concentrating mixtures including shear sensitive biopolymers, such as von Willebrand Factor. Conventional methods of concentrating biopolymers impart too much shear stress, which causes the degradation of shear sensitive biopolymers. The methods disclosed herein reduce the shear stress while maintaining a high rate of filtrate flux. Disclosed herein is a method for concentrating shear sensitive biopolymers including flowing a mixture with a shear sensitive biopolymer into a hollow fiber dialysis module to form a retentate having a shear sensitive biopolymer concentration that is greater than that of the mixture. Hollow fiber dialysis modules have high filtrate fluxes and low shear rates at low flow rates. This ensures a high product yield and minimal loss of shear sensitive biopolymers. | 03-04-2010 |
20100093934 | PEGYLATION OF RECOMBINANT BLOOD COAGULATION FACTORS IN THE PRESENCE OF BOUND ANTIBODIES - The present invention relates to a proteinaceous construct comprising a blood coagulation factor, e.g., Factor VIII (FVIII), being bound to at least one water soluble polymer, including a poly(alkylene oxide) such as polyethylene glycol (PEG). Further the present invention relates to methods of preparing PEGylated blood coagulation factor, e.g., FVIII, in the presence of bound antibodies. The invention also relates to methods for prolonging the in vivo-half-life of blood coagulation factor, e.g., FVIII, in the blood of a mammal having a bleeding disorder associated with functional defects or deficiencies of blood coagulation factor, e.g., FVIII. | 04-15-2010 |
20110076719 | Substantially Animal Protein-Free Recombinant Furin and Methods for Producing the Same - The present invention relates to recombinant furin (rFurin) and methods for producing rFurin. More specifically, the invention relates to substantially animal protein-free rFurin and methods for producing substantially animal protein-free rFurin. | 03-31-2011 |
20110081700 | Methods of Purifying Recombinant Adamts13 and Other Proteins and Compositions Thereof - Provided herein are methods for purifying recombinant A Disintegrin-like and Metallopeptidase with Thrombospondin Type 1 Motif 13 (ADAMTS13) protein from a sample. The method comprises enriching for ADAMTS13 protein by chromatographically contacting the sample with hydroxyapatite under conditions that allow ADAMTS13 protein to appear in the eluate or supernatant from the hydroxylapatite. The methods may further comprise tandem chromatography with a mixed mode cation exchange/hydrophobic interaction resin that binds ADAMTS13 protein. Additional optional steps involve ultrafiltration/diafiltration, anion exchange chromatography, cation exchange chromatography, and viral inactivation. Also provided herein are methods for inactivating virus contaminants in protein samples, where the protein is immobilized on a support. Also provided herein are compositions of ADAMTS13 prepared according to said methods. | 04-07-2011 |
20110086413 | Cell Culture Medium For ADAMTS Protein Expression - The present invention provides culture mediums that are useful for the expression of ADAMTS proteins, such as ADAMTS13. Methods for the expression and purification of ADAMTS proteins are also provided. In some embodiments, the mediums and methods of the invention are useful for the expression of ADAMTS proteins having high specific activities. Also provided are ADAMTS, e.g., ADAMTS13, protein compositions with high specific activities, which are expressed and purified according to the methods provided herein. | 04-14-2011 |
20110092681 | Purification of VWF for Increased Removal of Non-Lipid Enveloped Viruses - The present invention provides methods for purifying Von Willebrand factor (VWF) for increased removal of non-lipid enveloped viruses. | 04-21-2011 |
20120076779 | STABILIZATION OF IMMUNOGLOBULINS AND OTHER PROTEINS THROUGH AQUEOUS FORMULATIONS WITH SODIUM CHLORIDE AT WEAK ACIDIC TO NEUTRAL ph - The present invention provides, among other aspects, storage stabile aqueous formulations of labile proteins at a mildly acidic to neutral pH. The present invention also provides methods for stabilizing a labile therapeutic protein composition at a mildly acidic to neutral pH. Advantageously, the methods and formulations provided herein allow stabile aqueous compositions of labile proteins at mildly acidic to neutral pH useful for parenteral administration. | 03-29-2012 |
20120108513 | PURIFICATION METHOD FOR DIVALENT CATION BINDING PROTEINS ON ANION EXCHANGE RESIN - The present invention relates to a method for the purification of divalent cation binding proteins with high purity on an anion exchange resin material, to divalent cation binding proteins obtainable by said method, and to a kit comprising means for carrying out said method. | 05-03-2012 |
20130071906 | CELL CULTURE MEDIUM FOR ADAMTS PROTEIN EXPRESSION - The present invention provides culture mediums that are useful for the expression of ADAMTS proteins, such as ADAMTS13. Methods for the expression and purification of ADAMTS proteins are also provided. In some embodiments, the mediums and methods of the invention are useful for the expression of ADAMTS proteins having high specific activities. Also provided are ADAMTS, e.g., ADAMTS13, protein compositions with high specific activities, which are expressed and purified according to the methods provided herein. | 03-21-2013 |
20130150557 | METHOD FOR THE PURIFICATION OF RECOMBINANT BLOOD COAGULATION FACTOR IX ENRICHED IN SULFATED AND/OR PHOSPHORYLATED MOLECULES - The present invention relates to a method for the purification of rFIX using anion exchange chromatography in the pseudo-affinity mode, wherein said method comprises a wash step with a wash buffer having a salt concentration of more than 200 mM. The purification according to the invention provides a method to enrich rFIX molecules which have been posttranslationally modified by sulfation and/or phosphorylation. The present invention further relates to purified rFIX compositions enriched in monosulfated and/or monophosphorylated rFIX molecules. | 06-13-2013 |
20130344535 | Virus Filtration of Cell Culture Media - The invention relates to a method for removing a viral contaminant from a preparation, being a cell culture medium or at least a component of a cell culture medium. The method comprises subjecting said preparation to filtration for at least about 24 hours through a virus filter having an effective pore size of maximum about 75 nm. Further, the invention relates to the use of a virus filter in filtration of at least about 24 hours, wherein the virus filter has an effective pore size of maximum about 75 nm for the removal of viral contaminant from a preparation, being a cell culture medium or at least a component of a cell culture medium. In some embodiments the filtration according to the invention operates at a volumetric capacity of at least about 2000 L/m | 12-26-2013 |
20140302591 | PROTEIN PURIFICATION BY ANION EXCHANGE CHROMATOGRAPHY - The present invention relates to a two-step method for the purification of divalent cation binding proteins with high yield and high purity on anion exchange resin materials, to divalent cation binding proteins obtainable by said method, and to a kit comprising means for carrying out said method. | 10-09-2014 |
20140329294 | CELL CULTURE MEDIUM FOR ADAMTS PROTEIN EXPRESSION - The present invention provides culture mediums that are useful for the expression of ADAMTS proteins, such as ADAMTS13. Methods for the expression and purification of ADAMTS proteins are also provided. In some embodiments, the mediums and methods of the invention are useful for the expression of ADAMTS proteins having high specific activities. Also provided are ADAMTS, e.g., ADAMTS13, protein compositions with high specific activities, which are expressed and purified according to the methods provided herein. | 11-06-2014 |