rubella/carbohydrate

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Characterization of carbohydrates linked to rubella virus glycoprotein E2.

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Rubella virus contains two envelope glycoproteins, E1 and E2. The amino acid sequence for both glycoproteins is known, as is the number of N-glycosylation sites. This study has demonstrated the presence of O-linked carbohydrates bound to E2 and determined structural characteristics of the N-linked

Role of N-linked oligosaccharides in processing and intracellular transport of E2 glycoprotein of rubella virus.

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The role of N-linked glycosylation in processing and intracellular transport of rubella virus glycoprotein E2 has been studied by expressing glycosylation mutants of E2 in COS cells. A panel of E2 glycosylation mutants were generated by oligonucleotide-directed mutagenesis. Each of the three

Fatty acid composition of rubella virus and BHK21/13S infected cells.

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The rubella virus is composed of RNA (2.4 per cent dry weight of the virus), proteins (74.8 per cent), carbohydrates (4:2.5 per cent of which are present as aminosugars, 1.5 per cent as neutral sugars) and lipids (18.8 per cent). The analysis of fatty acids in rubella virus was done at the same time

Role of membrane phospholipids and glycolipids in the Vero cell surface receptor for rubella virus.

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Membrane receptors for rubella virus (RV) in Vero cells were studied by means of two different approaches: (i) by enzyme treatment of the whole cell membrane and (ii) by testing the ability of isolated plasma membrane molecules to compete with cells for virus binding. The replication of RV was

Brefeldin A and monensin arrest cell surface expression of membrane glycoproteins and release of rubella virus.

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The maturation of rubella virus (RV) glycoproteins E2 and E1 was examined by using brefeldin A (BFA) and monensin. BFA, which induces the rapid redistribution of Golgi enzymes residing in the Golgi complex into the endoplasmic reticulum (ER), was used to locate the intracellular site for the

Rubella virus: structural and non-structural proteins.

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Rubella virus was rapidly concentrated and purified using polyethylene glycol 6000 as the precipitating agent. Electrophoresis in slab gels defined three structural proteins present in equimolar amounts, with mol. wt. of 59000 (E1), 43000 to 48000 (heterogeneous E2) and 34000 (core protein, C). E1

Glycopolypeptides of rubella virus. Brief report.

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Purified rubella virus particles contain two glycopolypeptides (62K and 44K to 51K) and one nonglycosylated polypeptide (35K). Glycoproteins can be labeled with tritiated sodiumborohydride after oxidation with galactose oxidase indicating that galactose is the terminal carbohydrate unit. The other

The influence of N-linked glycosylation on the antigenicity and immunogenicity of rubella virus E1 glycoprotein.

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Rubella virus E1 glycoprotein contains three functional N-linked glycosylation sites. The role of N-linked glycosylation on the antigenicity and immunogenicity of E1 glycoprotein was studied using vaccinia recombinants expressing E1 glycosylation mutants. Expressed E1 glycosylation mutant proteins

Antiviral activity of natural and semisynthetic polysaccharides on the early steps of rubella virus infection.

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The natural and semisynthetic carbohydrates scleroglucan, locust bean gum, tamarind gum (glyloid) and its three sulphate derivatives (GP4311, GP4327 and GP4324), glycogen and its two sulphate derivatives (GP4427 and GP4435), alginic acid and dextran sulphate, were investigated for their inhibitory

BIOLOGICALLY ACTIVE NATURAL PRODUCTS OF THE GENUS CALLICARPA.

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About 20 species from Callicarpa have reported ethnobotanical and ethnomedical uses, and several members of this genus are well known in the traditional medical systems of China and South Asia. Ethnomedical reports indicate their use in the treatment of hepatitis, rheumatism, fever, headache,

Effects of dietary arachidonic acid on human immune response.

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Arachidonic acid (AA) is a precursor of eicosanoids, which influence human health and the in vitro activity of immune cells. We therefore examined the effects of dietary AA on the immune response (IR) of 10 healthy men living at our metabolic suite for 130 d. All subjects were fed a basal diet

A human dietary arachidonic acid supplementation study conducted in a metabolic research unit: rationale and design.

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While there are many reports of studies that fed arachidonic acid (AA) to animals, there are very few reports of AA feeding to humans under controlled conditions. This 130-d study was conceived as a controlled, symmetrical crossover design with healthy, adult male volunteers. They lived in the

An improved Fc function assay utilizing CMV antigen-coated red blood cells generated with synthetic function-spacer-lipid constructs.

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OBJECTIVE The Fc function assessment of immunoglobulin products is performed to confirm that the biological activity of immunoglobulin products is not affected by manufacturing and storage conditions. The European Pharmacopoeia (EP) test is cumbersome and time-consuming especially with respect to

Cynanchum Paniculatum (Bunge) Kitag. Ex H. Hara: A Review of Its Ethnopharmacology, Phytochemistry and Pharmacology

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Ethnopharmacological relevance: Cynanchum paniculatum (Bunge) Kitag. ex H. Hara (C. paniculatum), is a broadly used traditional medicinal plant by East Asians. The roots and rhizomes of this herb were named 'Xu-Chang-Qing' since the Qin or Han Dynasty (B.C.221-220)

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