نتایج جستجو برای: insect cells
تعداد نتایج: 1417543 فیلتر نتایج به سال:
The generation of deletion mutants, including defective interfering viruses, upon serial passage of Spodoptera exigua multicapsid nucleopolyhedrovirus (SeMNPV) in insect cell culture has been studied. Sequences containing the non-homologous region origin of DNA replication (non-hr ori) became hypermolar in intracellular viral DNA within 10 passages in Se301 insect cells, concurrent with a drama...
the frequency of allergic diseases such as allergic rhinitis is considerable in general population. insect aeroallergens are important allergens which can induce airway inflammation. the aim of this study was to determine the prevalence of sensitization to insect aeroallergens in allergic rhinitis patients in yazd as a desert city in iran. a cross-sectional study was undertaken on 95 allergi...
Many insect-transmissible pathogens are transmitted by specific insect species and not by others, even if they are closely related. The molecular mechanisms underlying such strict pathogen-insect specificity are poorly understood. Candidatus Phytoplasma asteris, OY strain, line W (OY), is a phytopathogenic bacterium transmitted from plant to plant by sap-feeding insect vectors (leafhoppers). Ou...
1. Rat histamine H2 receptors were epitope-tagged with six histidine residues at the C-terminus to allow immunological detection of the receptor. Recombinant baculoviruses containing the epitope-tagged H2 receptor were prepared and were used to infect insect Sf9 cells. 2. The His-tagged H2 receptors expressed in insect Sf9 cells showed typical H2 receptor characteristics as determined with [125...
Bacillus thuringiensis delta-endotoxins insert into the brush border membranes of insect larval cells to form ion channels. A possible interaction of these toxins with a cytoplasmic component was examined by preloading vesicles from insect larval cells with protease K followed by incubation with toxin. There was no evidence for toxin antigens smaller than the intact toxin in extracts of solubil...
A cDNA coding for human interleukin 2 (IL-2) was inserted into the genome of Autographa californica nuclear polyhedrosis virus adjacent to the polyhedrin promoter. Cells infected with recombinant virus produced high levels of Mr 15,500 IL-2 polypeptide, the majority of which was secreted into the culture medium during infection. The recombinant IL-2 was able to stimulate the growth of an IL-2-d...
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