نتایج جستجو برای: glycosylation
تعداد نتایج: 17650 فیلتر نتایج به سال:
Millions of individuals are vaccinated worldwide each year to stimulate their adaptive immune systems to produce protective antibodies and T-cell response against pathogens. Since glycosylation of the Fc region of immunoglobulin G (IgG) can be influenced by the host's immune status, it was inferred that glycosylation profile of IgG might be altered as a result of the immune response. Therefore,...
Glycosylation is the most abundant and diverse posttranslational modification of proteins. While several types of glycosylation can be predicted by the protein sequence context, and substantial knowledge of these glycoproteomes is available, our knowledge of the GalNAc-type O-glycosylation is highly limited. This type of glycosylation is unique in being regulated by 20 polypeptide GalNAc-transf...
BACKGROUND Congenital disorders of glycosylation are genetic syndromes that result in impaired glycoprotein production. We evaluated patients who had a novel recessive disorder of glycosylation, with a range of clinical manifestations that included hepatopathy, bifid uvula, malignant hyperthermia, hypogonadotropic hypogonadism, growth retardation, hypoglycemia, myopathy, dilated cardiomyopathy,...
Background: Bladder cancer is a common urological associated high significant morbidity and mortality rates. Immunotherapy has emerged as promising treatment option, although response rates vary among patients. Glycosylation been implicated in tumorigenesis immune regulation. However, our current comprehensive understanding of the role glycosylation bladder its clinical implications limited. Me...
Prion proteins that are normal cellular components or involved in pathology can vary little or not at all in primary amino acid sequence, but their glycosylation is different, e.g. in scrapie versus normal forms; in mouse strain-specific isolates; and in BSE (bovine spongiform encephalopathy) and variant CJD (Creutzfeldt-Jakob disease) versus classical CJD. The results of Nielsen et al. publish...
Glycosylation is one of the most important modifications of proteins and lipids, and cell surface glycoconjugates are thought to play important roles in a variety of biological functions including cell-cell and cell-substrate interactions, bacterial adhesion, cell immunogenicity and cell signaling. Alterations of glycosylation are observed in number of diseases such as cancer and chronic inflam...
Glycosylation is one of the most abundant protein posttranslational modifications. Protein glycosylation plays important roles not only in eukaryotes but also in prokaryotes. To further understand the roles of protein glycosylation in prokaryotes, we developed a lectin binding assay to screen glycoproteins on an Escherichia coli proteome microarray containing 4,256 affinity-purified E.coli prot...
Protein glycosylation is essential for eukaryotic cells from yeasts to humans. When compared to N-glycosylation, O-glycosylation is variable in sugar components and the mode of linkages connecting the sugars. In fungi, secretory proteins are commonly mannosylated by protein O-mannosyltransferase (PMT) in the endoplasmic reticulum, and subsequently glycosylated by several glycosyltransferases in...
The family B G protein-coupled glucagon-like peptide 1 (GLP-1) receptor is an important drug target for treatment of type 2 diabetes. Like other family members, the GLP-1 receptor is a glycosylated membrane protein that contains three potential sites for N-linked glycosylation within the functionally important extracellular amino-terminal domain. However, the roles for each potential site of gl...
The life cycle of most benthic marine invertebrates has two distinct stages: the pelagic larval stage and the sessile juvenile stage. The transition between the larval stage and the juvenile stage is often abrupt and may be triggered by post-translational modification of proteins. Glycosylation, a very important post-translational modification, influences the biological activity of proteins. We...
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