Abstract: The invention relates to commercially viable methods for producing biologically active vitamin K dependent proteins, particularly Factor IX. Factor IX is produced at a level of at least about 15 mg/L and is at least 25% biologically active. The method relies upon co-expression of one or more of paired basic amino acid converting enzyme (PACE), vitamin K dependent epoxide reductase (VKOR) and vitamin K dependent ?-glutamyl carboxylase (VKGC) at a preferred ratio so that the vitamin K dependent protein is efficiently produced and processed by a recombinant cell.

Abstract: Methods of isolating highly sialylated recombinant vitamin K dependent proteins, particularly Factor IX, by chromatographic methods are described. The highly sialylated recombinant proteins are characterized. The improved Factor IX has at least 62% N-glycosylation with 3 or 4 sialic acid residues and improved bioavailability and pharmokinetic properties.

Abstract: Methods of preparing lyophilized preparations of Factor IX which preserve more than 90% of the calcium binding property of Factor IX are disclosed. Factor IX formulated with trehalose shows a superior stability profile after 12 weeks storage at 25° C./60% relative humidity (RH) and 40° C./75% RH relative to Factor IX formulated without trehalose. The data suggest that the inclusion of trehalose in the formulation could allow for temperature excursions or even long-term room temperature storage of a Factor IX lyophilized product. The formulations tested contained 10 mM histidine pH 6.8, 3% mannitol, 66 mM sodium chloride, 0.0075% Polysorbate 80, with and without 1% trehalose. Upon storage at 40° C./75% RH or 25° C./60% RH over 12 weeks the trehalose-containing formulation was comparable to product stored at 2-8° C. while the formulation without trehalose was found to undergo significant aggregation and loss of activity.

Abstract: The invention relates to commercially viable methods for producing biologically active vitamin K dependent proteins, particularly Factor IX. Factor IX is produced at a level of at least about 15 mg/L and is at least 25% biologically active. The method relies upon co-expression of one or more of paired basic amino acid converting enzyme (PACE), vitamin K dependent epoxide reductase (VKOR) and vitamin K dependent ?-glutamyl carboxylase (VKGC) at a preferred ratio so that the vitamin K dependent protein is efficiently produced and processed by a recombinant cell.

Abstract: Methods of isolating highly sialylated recombinant vitamin K dependent proteins, particularly Factor IX, by chromatographic methods am described. The highly sialylated recombinant proteins are characterized. The improved Factor IX has at least 62% N-glycosylation with 3 or 4 sialic acid residues and improved bioavailability and pharmokinetic properties.

Abstract: Methods of preparing lyophilized preparations of Factor IX which preserve more than 90% of the calcium binding property of Factor IX are disclosed. Factor IX formulated with trehalose shows a superior stability profile after 12 weeks storage at 25° C./60% relative humidity (RH) and 40° C./75% RH relative to Factor IX formulated without trehalose. The data suggest that the inclusion of trehalose in the formulation could allow for temperature excursions or even long-term room temperature storage of a Factor IX lyophilized product. The formulations tested contained 10 mM histidine pH 6.8, 3% mannitol, 66 mM sodium chloride, 0.0075% Polysorbate 80, with and without 1% trehalose. Upon storage at 40° C./75% RH or 25° C./60% RH over 12 weeks the trehalose-containing formulation was comparable to product stored at 2-8° C. while the formulation without trehalose was found to undergo significant aggregation and loss of activity.

Abstract: The invention relates to commercially viable methods for producing biologically active vitamin K dependent protein, particularly Factor IX. Factor IX is produced at a level of at least about 15 mg/L and is at least 25% biologically active. The method relies upon co-expression of one or more of paired basic amino acid converting enzyme (PACE), vitamin K dependent epoxide reductase (VKOR) and vitamin K dependent ?-glutamyl carboxylase (VKGC) at a preferred ratio so that the vitamin K dependent protein is efficiently produced and processed by a recombinant cell.

Abstract: Methods of isolating highly sialylated recombinant vitamin K dependent proteins, particularly Factor IX, by chromatographic methods are described. The highly sialylated recombinant proteins are characterized. The improved Factor IX has at least 62% N-glycosylation with 3 or 4 sialic acid residues and improved bioavailability and pharmokinetic properties.

Abstract: Methods of preparing lyophilized preparations of Factor IX which preserve more than 90% of the calcium binding property of Factor IX are disclosed. Factor IX formulated with trehalose shows a superior stability profile after 12 weeks storage at 25° C./60% relative humidity (RH) and 40° C./75% RH relative to Factor IX formulated without trehalose. The data suggest that the inclusion of trehalose in the formulation could allow for temperature excursions or even long-term room temperature storage of a Factor IX lyophilized product. The formulations tested contained 10 mM histidine pH 6.8, 3% mannitol, 66 mM sodium chloride, 0.0075% Polysorbate 80, with and without 1% trehalose. Upon storage at 40° C./75% RH or 25° C./60% RH over 12 weeks the trehalose-containing formulation was comparable to product stored at 2-8° C. while the formulation without trehalose was found to undergo significant aggregation and loss of activity.

Abstract: The invention relates to commercially viable methods for producing biologically active vitamin R dependent proteins, particularly Factor IX. Factor IX is produced at a level of at least about 15 mg/L and is at least 25% biologically active. The method relies upon co-expression of one or more of paired basic amino acid converting enzyme (PACE), vitamin K dependent epoxide reductase (VKOR) and vitamin K dependent ?-glutamyl carboxylase (VKGC) at a preferred ratio so that the vitamin K dependent protein is efficiently produced and processed by a recombinant cell.

Abstract: Methods for producing cell lines with high levels of biologically active recombinant vitamin K dependent proteins are described. The transfected cell lines do not include heterologous genes for processing enzymes and are not subject to selection pressure such as methotrexate resistance. Cell lines producing Factor VII/VIIa and Factor IX are described. These cell lines can be used for isolation of Factor VII/VIIa and/or Factor IX for treatment of Hemophilia.

Abstract: Methods of preparing lyophilized preparations of Factor IX which preserve more than 90% of the calcium binding property of Factor IX are disclosed. Factor IX formulated with trehalose shows a superior stability profile after 12 weeks storage at 25° C./60% relative humidity (RH) and 40° C./75% RH relative to Factor IX formulated without trehalose. The data suggest that the inclusion of trehalose in the formulation could allow for temperature excursions or even long-term room temperature storage of a Factor IX lyophilized product. The formulations tested contained 10 mM histidine pH 6.8, 3% mannitol, 66 mM sodium chloride, 0.0075% Polysorbate 80, with and without 1% trehalose. Upon storage at 40° C./75% RH or 25° C./60% RH over 12 weeks the trehalose-containing formulation was comparable to product stored at 2-8° C. while the formulation without trehalose was found to undergo significant aggregation and loss of activity.

Abstract: Methods of isolating highly sialylated recombinant vitamin K dependent proteins, particularly Factor IX, by chromatographic methods are described. The highly sialylated recombinant proteins are characterized. The improved Factor IX has at least 62% N-glycosylation with 3 or 4 sialic acid residues and improved bioavailability and pharmokinetic properties.

Abstract: The invention relates to commercially viable methods for producing biologically active vitamin K dependent proteins, particularly Factor IX. Factor IX is produced at a level of at least about 15 mg/L and is at least 25% biologically active. The method relies upon co-expression of one or more of paired basic amino acid converting enzyme (PACE), vitamin K dependent epoxide reductase (VKOR) and vitamin K dependent ?-glutamyl carboxylase (VKGC) at a preferred ratio so that the vitamin K dependent protein is efficiently produced and processed by a recombinant cell.

Abstract: Methods for producing cell lines with high levels of biologically active recombinant vitamin K dependent proteins are described. The transfected cell lines do not include heterologous genes for processing enzymes and are not subject to selection pressure such as methotrexate resistance. Cell lines producing Factor VII/VIIa and Factor IX are described. These cell lines can be used for isolation of Factor VII/VIIa and/or Factor IX for treatment of Hemophilia.

Abstract: The invention relates to commercially viable methods for producing biologically active vitamin K dependent proteins, particularly Factor IX. Factor IX is produced at a level of at least about 15 mg/L and is at least 25% biologically active. The method relies upon co-expression of one or more of paired basic amino acid converting enzyme (PACE), vitamin K dependent epoxide reductase (VKOR) and vitamin K dependent ?-glutamyl carboxylase (VKGC) at a preferred ratio so that the vitamin K dependent protein is efficiently produced and processed by a recombinant cell.

Abstract: Methods for producing cell lines with high levels of biologically active recombinant vitamin K dependent proteins are described. The transfected cell lines do not include heterologous genes for processing enzymes and are not subject to selection pressure such as methotrexate resistance. Cell lines producing Factor VII/VIIa and Factor IX are described. These cell lines can be used for isolation of Factor VII/VIIa and/or Factor IX for treatment of Hemophilia.

Abstract: Methods of preparing lyophilized preparations of Factor IX which preserve more than 90% of the calcium binding property of Factor IX are disclosed. Factor IX formulated with trehalose shows a superior stability profile after 12 weeks storage at 25° C./60% relative humidity (RH) and 40° C./75% RH relative to Factor IX formulated without trehalose. The data suggest that the inclusion of trehalose in the formulation could allow for temperature excursions or even long-term room temperature storage of a Factor IX lyophilized product. The formulations tested contained 10 mM histidine pH 6.8, 3% mannitol, 66 mM sodium chloride, 0.0075% Polysorbate 80, with and without 1% trehalose. Upon storage at 40° C./75% RH or 25° C./60% RH over 12 weeks the trehalose-containing formulation was comparable to product stored at 2-8° C. while the formulation without trehalose was found to undergo significant aggregation and loss of activity.

Abstract: Methods of isolating highly sialylated recombinant vitamin K dependent proteins, particularly Factor IX, by chromatographic methods are described. The highly sialylated recombinant proteins are characterized. The improved Factor IX has at least 62% N-glycosylation with 3 or 4 sialic acid residues and improved bioavailability and pharmokinetic properties.

Abstract: A fuel injection, ignition, and combustion system for use in a rotary internal combustion engine of the diesel type and method of power extraction is provided. The fuel combustion system includes a rotary engine with a prechamber disposed in a top center position of the engine housing. The prechamber includes means within the prechamber for maintaining a surface in the prechamber at a temperature sufficient to cause ignition of the fuel. In operation, unthrottled air is introduced into the housing and compressed in the top center position of the engine housing. Fuel is introduced into the prechamber via a fuel injector disposed within the prechamber which ignites due to the hot surface and initiates combustion. The engine continues to operate by retaining the surface of the prechamber at a high temperature which initiates subsequent combustion cycles.