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Page 1 from 63 results
Immunogenicity of an S1D epitope from porcine epidemic diarrhea virus and cholera toxin B subunit fusion protein transiently expressed in infiltrated Nicotiana benthamiana leaves.
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Porcine epidemic diarrhea virus (PEDV) belongs to the Coronaviridae family and causes acute enteritis in pigs. A fragment of the large spike glycoprotein, termed the S1D epitope (aa 636-789), alone and fused with cholera toxin B subunit, were independently cloned into plant expression
High level expression of a functionally active cholera toxin B: rabies glycoprotein fusion protein in tobacco seeds.
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A synthetic DNA construct containing cholera toxin B subunit, genetically fused to the surface glycoprotein of rabies virus was expressed in tobacco plants from a seed specific (legumin) promoter. Seed specific expression was monitored by real-time PCR, GM1-ELISA and Western blot analyses. The
Purified cholera toxin B subunit from transgenic tobacco plants possesses authentic antigenicity.
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Cholera toxin B subunit (CTB) mature protein was stably expressed in transgenic tobacco plants under the control of the CaMV 35S promoter and TMV Omega fragment. Fusion of the PR1b signal peptide coding sequence to the CTB mature protein gene increased the expression level by 24-fold. The
Production of Recombinant Cholera Toxin B Subunit in Nicotiana benthamiana Using GENEWARE® Tobacco Mosaic Virus Vector.
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Here, we describe a method to produce a recombinant cholera toxin B subunit in Nicotiana benthamiana plants (CTBp) using the GENEWARE(®) tobacco mosaic virus vector system. Infectious transcripts of the vector RNA are generated in vitro and inoculated on N. benthamiana seedlings. After 11 days, CTBp
Expression of a synthetic cholera toxin B subunit in tobacco using ubiquitin promoter and bar gene as a selectable marker.
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A protocol has been developed to produce a cholera toxin B subunit (CTB) in tobacco tolerant to the herbicide phosphinothricin (PPT) by means of in vitro selection. The synthetic CTB subunit gene was altered to modify the codon usage to that of tobacco plant genes. The gene was then cloned into a
Expression of cholera toxin B subunit and the B chain of human insulin as a fusion protein in transgenic tobacco plants.
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A DNA construct containing the cholera toxin B subunit (CTB) gene genetically fused to a nucleotide sequence encoding three copies of tandemly repeated diabetes-associated autoantigen, the B chain of human insulin, was produced and transferred into low-nicotine tobaccos by Agrobacterium. Integration
Improved expression of porcine epidemic diarrhea antigen by fusion with cholera toxin B subunit and chloroplast transformation in Nicotiana tabacum.
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The porcine epidemic diarrhea virus (PEDV) belongs to the coronavirus family, which causes acute diarrhea in pigs with higher mortality in piglets less than 2 weeks old. The PEDV is one of the major concerns of the pig industry around the world, including Asian countries and Noth America since first
Cholera toxin elevates pathogen resistance and induces pathogenesis-related gene expression in tobacco.
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In animals, plants and fungi, cholera toxin (CTX) can activate signalling pathways dependent on heterotrimeric GTP binding proteins (G-proteins). We transformed tobacco plants with a chimeric gene encoding the A1 subunit of CTX regulated by a light-inducible wheat Cab-1 promoter. Tissues of
Expression of the native cholera toxin B subunit gene and assembly as functional oligomers in transgenic tobacco chloroplasts.
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The B subunits of enterotoxigenic Escherichia coli (LTB) and cholera toxin of Vibrio cholerae (CTB) are candidate vaccine antigens. Integration of an unmodified CTB-coding sequence into chloroplast genomes (up to 10,000 copies per cell), resulted in the accumulation of up to 4.1 % of total soluble
Rabies glycoprotein fused with B subunit of cholera toxin expressed in tobacco plants folds into biologically active pentameric protein.
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The pentameric B subunit of cholera toxin (CtxB) is an efficient mucosal adjuvant for vaccines. We report the expression of a chimeric protein comprising the synthetic cholera toxin B subunit fused at its C-terminal with rabies surface glycoprotein (G protein) in tobacco plants. The approximately
Expression of cholera toxin B-proinsulin fusion protein in lettuce and tobacco chloroplasts--oral administration protects against development of insulitis in non-obese diabetic mice.
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Lettuce and tobacco chloroplast transgenic lines expressing the cholera toxin B subunit-human proinsulin (CTB-Pins) fusion protein were generated. CTB-Pins accumulated up to ~16% of total soluble protein (TSP) in tobacco and up to ~2.5% of TSP in lettuce. Eight milligrams of powdered tobacco leaf
N-glycosylation of cholera toxin B subunit in Nicotiana benthamiana: impacts on host stress response, production yield and vaccine potential.
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Plant-based transient overexpression systems enable rapid and scalable production of subunit vaccines. Previously, we have shown that cholera toxin B subunit (CTB), an oral cholera vaccine antigen, is N-glycosylated upon expression in transgenic Nicotiana benthamiana. Here, we found that
Survival of Vibrio cholerae of food and tobacco.
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Ubiquitin fusion enhances cholera toxin B subunit expression in transgenic plants and the plant-expressed protein binds GM1 receptors more efficiently.
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Developing plant based systems for the production of therapeutic recombinant proteins requires the development of efficient expression strategies and characterization of proteins made in heterologous cellular environment. In this study, the expression of cholera toxin B subunit (CtxB) was examined
Stable production of peptide antigens in transgenic tobacco chloroplasts by fusion to the p53 tetramerisation domain.
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The production of short peptides as single molecules in recombinant systems is often limited by the low stability of the foreign peptide. In the plant expression system this problem has been solved by translational fusions to recombinant proteins that are highly stable or are able to form complex
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