摘要:
A pro-polypeptide which is useful for the expression of a polypeptide of interest in a prokaryotic cell. Therefore the pro-polypeptide is fused to the N-terminus of the polypeptide of interest. The pro-polypeptide as reported herein provides for improved expression yields and improves the handling of the fusion polypeptide (downstream processing, purification). For example, efficient endotoxin removal is effected while the protein of interest comprising the pro-polypeptide is bound e.g. to an affinity chromatography material. Thereafter the pro-polypeptide can efficiently be cleaved from the polypeptide of interest by the incorporated protease cleavage site with the cognate protease.
摘要:
The current invention is related to a conjugate comprising one or more antifusogenic peptides and an anti-CCR5 antibody (mAb CCR5) characterized in that one to eight antifusogenic peptides are each conjugated to one terminus of the heavy and/or light chains of said anti-CCR5 antibody and to the pharmaceutical use of said conjugate.
摘要:
The current invention is related to a conjugate comprising one or more antifusogenic peptides and an anti-CCR5 antibody (mAb CCR5) characterized in that one to eight antifusogenic peptides are each conjugated to one terminus of the heavy and/or light chains of the anti-CCR5 antibody and to the pharmaceutical use of the conjugate.
摘要:
A method for the recombinant production of a heterologous polypeptide in a eukaryotic host cell is described. The host cell comprises an expression plasmid, whereby the expression plasmid comprises in a 5′ to 3′ direction a) a promoter, b) a nucleic acid encoding a first polypeptide, whose amino acid sequence is selected from Table 1 depending on the first two amino acids of the second polypeptide, c) a nucleic acid encoding a second polypeptide comprising a nucleic acid encoding a heterologous polypeptide, a nucleic acid encoding a linker, and a nucleic acid encoding an immunoglobulin fragment, and d) a 3′ untranslated region comprising a polyadenylation signal. Further a plasmid and a kit are described.
摘要:
The current invention reports a method for the recombinant production of a secreted heterologous immunoglobulin in a CHO cell comprising the following steps: i) providing a CHO cell, which is adapted to growth in suspension culture, adapted to growth in serum-free medium, mycoplasma free, and virus free, ii) providing a vector comprising a prokaryotic origin of replication, a first nucleic acid conferring resistance to a prokaryotic selection agent, a second nucleic acid encoding the heavy chain of said heterologous immunoglobulin, a third nucleic acid encoding the light chain of said heterologous immunoglobulin, a fourth nucleic acid conferring resistance to a eukaryotic selection agent, iii) transfecting said CHO cell, wherein said transfecting comprises a) transfecting said CHO cell with said vector comprising a fourth nucleic acid conferring resistance to a first eukaryotic selection agent, b) selecting a CHO cell by growth in cultivation medium containing said first eukaryotic selection agent, c) transfecting said selected CHO cell with said vector comprising a fourth nucleic acid conferring resistance to a second eukaryotic selection agent different to said first eukaryotic selection agent, d) selecting a CHO cell by selected growth in cultivation medium containing said first and said second eukaryotic selection agent, iv) cultivating said transfected CHO cell in a medium in the presence of said first and second eukaryotic selection agent, under conditions suitable for the expression of said second, and third nucleic acid, and v) recovering said secreted heterologous immunoglobulin from the cultivation medium.
摘要:
The current invention comprises a nucleic acid encoding the amino acid sequence of the C-terminal part of the CH3-domain of an immunoglobulin of the class IgA or IgG, or the C-terminal part of the CH4-domain of an immunoglobulin of the class IgE or IgM, wherein the glycine-lysine-dipeptide comprised in the amino acid sequence of the C-terminal part of the CH3- or CH4-domain is encoded by the nucleic acid ggaaaa, or the nucleic acid ggcaaa, or the nucleic acid gggaaa, or the nucleic acid gggaag, or the nucleic acid ggcaag, or the nucleic acid ggaaag.
摘要:
This invention relates to anti-P-selectin antibodies and, in particular, to anti-P-selectin antibodies and variants thereof that contain an Fc part derived from human origin and do not bind complement factor C1q. These antibodies have new and inventive properties causing a benefit for a patient suffering from critical limb ischemia or peripheral arterial occlusive disease (CLI/PAOD).
摘要:
The current invention is related to a conjugate comprising one or more antifusogenic peptides and an anti-CCR5 antibody (mAb CCR5) characterized in that one to eight antifusogenic peptides are each conjugated to one terminus of the heavy and/or light chains of said anti-CCR5 antibody and to the pharmaceutical use of said conjugate.
摘要:
Hypoglycosylated recombinant glucose oxidase with a molecular weight of ca. 68-80 kDa, a specific activity of ca. 200 U/mg unit of weight, a carbohydrate portion of ca. 12% which is obtainable by expression of a recombinant DNA containing the GOD gene in the N-glycosylation-defective yeast mutants DSM 7042, DSM 7338, DSM 7160 or DSM 7340 or allelic mutant strains, fermentation and isolation of the enzyme from the culture supernatant or the cells.
摘要:
In a process for the production of recombinant, biologically active, eukaryotic alkaline phosphatase a DNA sequence coding for a eukaryotic alkaline phosphatase is expressed in a prokaryotic host cell and the expression product is obtained in an active form by cell lysis, solubilization under denaturing conditions and subsequent renaturation. In this process the renaturation step is carried out in the presence of one or several stabilizing agents.