Influence of cell-line and process conditions on the glycosylation of recombinant proteins
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The glycoprotein IgM is the major antibody produced in the primary immune response to antigens, circulating in the serum both as a pentamer and a hexamer. Pentameric IgM has a single J chain, which is absent in the hexamer. The mu (heavy) chain of IgM has ...
American Society for Biochemistry and Molecular Biology2005
An anti-Rhesus D antibody was produced in various cell-lines and cell-types which were either stable or transient transfected and grown under varying culture conditions. Glycosylation anal. of the IgG1 was carried out mainly by HPAEC methods. The antibody ...
Intercellular communication is governed by interactions between surface oligosaccharides and glycoproteins. The biosynthesis of these molecules involves glycosidations catalyzed by glycosyltransferases and hydrolysis of O-glycosyl linkages catalyzed by gly ...
Aims/hypothesis. Glima 38 is an N-glycated neuroendocrine membrane protein of Mr 38 000, which is recognised by autoantibodies in approximately 20% of patients with Type I (insulin-dependent) diabetes mellitus. The aim of this study was to characterise the ...
Gpi8p and Gaa1p are essential components of the GPI transamidase that adds glycosylphosphatidylinositols (GPIs) to newly synthesized proteins. After solubilization in 1.5% digitonin and separation by blue native PAGE, Gpi8p is found in 430-650-kDa protein ...
We combined biophys., biochem., and pharmacol. approaches to investigate the ability of the a1a- and a1b-adrenergic receptor (AR) subtypes to form homo- and hetero-oligomers. Receptors tagged with different epitopes (hemagglutinin and Myc) or fluorescent p ...
Tyrosine sulfation and O-glycosylation are two post-translational modifications playing an essential role in modulation of biol. activity, protein folding and cellular communication. Here, a novel chem. approach for the synthesis of biotinylated glycosulfo ...
Currently two types of chip systems are used in conjunction with MS: out-of-plane devices, where hundreds of nozzles, nanospray emitters are integrated onto a single silicon substrate from which electrospray is established perpendicular to the substrate, a ...
Secreted TGFbeta proteins of the Nodal family pattern the vertebrate body axes and induce mesoderm and endoderm . Nodal proteins can act as morphogens , but the mechanisms regulating their activity and signaling range are poorly understood. In particular, ...
Human embryonic kidney 293 (HEK293) cells, a widely used host for large-scale transient expression of recombinant proteins, are transformed with the adenovirus E1A and E1B genes. Because the E1A proteins function as transcriptional activators or repressors ...
