نتایج جستجو برای: baculovirus expression system
تعداد نتایج: 2988560 فیلتر نتایج به سال:
A gene encoding the nucleoprotein (N) of rabies virus was inserted into the genome of the baculovirus Autographa californica nuclear polyhedrosis virus. Recombinant gene expression was controlled by the strong polyhedrin gene promoter. Insect cells (Spodoptera frugiperda) infected by a baculovirus recombinant containing the rabies virus N gene produced abundant amounts of a novel 55-kilodalton ...
Baculovirus transduction is a gene transfer method that uses a moth cell virus for mammalian cells in culture, which results in a high-level prolonged expression. Here we demonstrate that recombinant baculoviruses can serve as efficient gene transfer vehicles for delivering foreign genes driven by mammalian promoters into human and mouse pancreatic islet cells. Existing methods, such as various...
The application of molecular technologies, such as the expression of viral proteins in baculovirus, has provided a powerful approach to the diagnosis of human calicivirus (HuCV) infections. The baculovirus-expressed HuCV capsid protein self-assembles into virus-like particles, providing excellent reagents for immunologic assays, such as enzyme immunoassays (EIAs). Following the expression of th...
In the present study, the bovine coronavirus (BCV) spike glycoprotein cleavage products (S1 and S2) were individually expressed in Spodoptera frugiperda (Sf9) insect cells, using a baculovirus expression system. The coding sequence of S1 and S2 gene fragments were amplified by RT-PCR and cloned into the baculovirus shuttle vector pBlueBac4.5/V5-His TOPO ® TA. The cloned fragments were inserted ...
OBJECTIVE CYP1A2 and NADPH-CYP450 oxidoreductase (POR) were expressed in the baculovirus/Spodoptera frugiperda (sf9) system. The aim of this study was to investigate the effects of heme precursors on the expression of CYP1A2 and POR. METHODS The heme precursors [δ-Aminolaevulinic Acid (5-ALA), Fe(3+) and hemin] were introduced into the system to evaluate their effects on the expression of CYP...
Equine influenza virus is a leading cause of respiratory disease in horses worldwide. Disease prevention is by vaccination with inactivated whole virus vaccines. Most current influenza vaccines are generated in embryonated hens' eggs. Virions are harvested from allantoic fluid and chemically inactivated. Although this system has served well over the years, the use of eggs as the substrate for v...
Here we report the development of a baculovirus-based delivery system that enables the efficient incorporation of unnatural amino acids into proteins in mammalian cells. We have exploited the large cargo-capacity (>30 kb) and stability of the double-stranded DNA genome of baculovirus to deliver to a variety of cell types all of the components required to genetically incorporate novel amino acid...
The Bombyx mori decapentaplegic gene is one of the conserved genes in vertebrate and invertebrates. The TGF-β superfamily contains conserved polypeptide growth factors that play important roles in different cellular processes such as proliferation, apoptosis, differentiation and cell-fate determination. The B. mori dpp gene shares genetic homology with hBMPs and Drosophila dpp. Until now, only ...
background: sequence variations in glycoproteins of influenza virus surface impel us to design new candidate vaccines yearly. ectodomain of influenza m2 protein is a surface and highly conserved protein. m2e in influenza vaccines may eliminate the need for changing vaccine formulation every year. objectives: in this study, a recombinant baculovirus containing m2e and cholera toxin subunit b fus...
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