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PMID |
Sentence |
1 |
9266981
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Complementary DNA encoding the ORF5 gene of a Quebec reference isolate (IAF-Klop) of porcine reproductive and respiratory syndrome virus (PRRSV) was cloned into the prokaryotic expression vectors pGEX-4T and pET21a to produce ORF5-glutathione S-transferase and ORF5-polyhistidine fusion proteins.
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2 |
9266981
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Five hybridoma cell lines producing monoclonal antibodies (MAbs) to the 25 kDa viral envelope glycoprotein (GP5) were obtained from BALB/c mice immunized with the affinity chromatography-purified GST-ORF5 fusion protein.
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3 |
9603313
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The ORF5-encoded major envelope glycoprotein (GP5) of porcine reproductive and respiratory syndrome virus (PRRSV) is one of the three major structural proteins of this virus.
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4 |
9603313
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While some porcine convalescent sera and monoclonal antibodies directed against GP4 and GP5 have the capacity to neutralize the virus in vitro, the protein specificity of porcine neutralizing sera has not yet been established.
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5 |
9603313
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Peripheral blood mononuclear cells obtained from DNA-vaccinated pigs underwent blastogenic transformation in the presence of E. coli-expressed recombinant ORF5-encoded protein, indicating the specificity of the cellular immune response to GP5.
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6 |
9603313
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The ORF5-encoded major envelope glycoprotein (GP5) of porcine reproductive and respiratory syndrome virus (PRRSV) is one of the three major structural proteins of this virus.
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7 |
9603313
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While some porcine convalescent sera and monoclonal antibodies directed against GP4 and GP5 have the capacity to neutralize the virus in vitro, the protein specificity of porcine neutralizing sera has not yet been established.
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8 |
9603313
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Peripheral blood mononuclear cells obtained from DNA-vaccinated pigs underwent blastogenic transformation in the presence of E. coli-expressed recombinant ORF5-encoded protein, indicating the specificity of the cellular immune response to GP5.
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9 |
9684045
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The objective of the present study was to evaluate the importance of genomic and antigenic variations which may have affected the major envelope glycoprotein GP5 of porcine reproductive and respiratory syndrome virus (PRRSV) isolates responsible for outbreaks in Quebec and Ontario, in comparison with the modified-live U.S. vaccine strain (MLV) and the European prototype strain from Lelystad (LV).
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10 |
9684045
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The ORF5 encoded products of 5 of these isolates, including the MLV and LV strains, were expressed in E. coli as recombinant proteins fused to the glutathione S-transferase (GST) protein and used to raise hyperimmune anti-ORF5 sera in rabbits.
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11 |
9684045
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The reactivity patterns of strain-specific hyperimmune anti-ORF5 sera and a panel of 4 monoclonal antibodies directed against the ORF5 gene product of the Quebec IAF-Klop strain of PRRSV, indicated that GP5 of field isolates also underwent antigenic variations.
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12 |
9684045
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The objective of the present study was to evaluate the importance of genomic and antigenic variations which may have affected the major envelope glycoprotein GP5 of porcine reproductive and respiratory syndrome virus (PRRSV) isolates responsible for outbreaks in Quebec and Ontario, in comparison with the modified-live U.S. vaccine strain (MLV) and the European prototype strain from Lelystad (LV).
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13 |
9684045
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The ORF5 encoded products of 5 of these isolates, including the MLV and LV strains, were expressed in E. coli as recombinant proteins fused to the glutathione S-transferase (GST) protein and used to raise hyperimmune anti-ORF5 sera in rabbits.
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14 |
9684045
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The reactivity patterns of strain-specific hyperimmune anti-ORF5 sera and a panel of 4 monoclonal antibodies directed against the ORF5 gene product of the Quebec IAF-Klop strain of PRRSV, indicated that GP5 of field isolates also underwent antigenic variations.
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15 |
10893147
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The major structural proteins consist of a 25 kDa envelope glycoprotein (GP5), an 18-19 kDa unglycosylated membrane protein (M), and a 15 kDa nucleocapsid (N) protein, encoded by ORFs 5, 6 and 7, respectively.
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16 |
10893147
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The expression products of ORFs 2 and 4 are also incorporated into virus particles as additional minor membrane-associated glycoproteins designated as GP2 and GP4, with M(r) of 29 and 31 kDa, respectively.
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17 |
11574173
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To explore the possible mechanism of the emergence of acute PRRS, the open reading frame 5 (ORF5) gene encoding the major envelope protein (GP5) of acute PRRSV isolates was characterized.
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18 |
14614267
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The ORF5 gene encodes a major envelope glycoprotein (GP5), which is one of the three major proteins of porcine reproductive and respiratory syndrome virus (PRRSV).
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19 |
14614267
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The GP5 protein has been known to be a 24.5-26 kDa N-glycosylated envelope protein.
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20 |
14614267
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To produce the native form of GP5 in mammalian cells, we have cloned the ORF5 gene from PRRSV CNV-1 into the Semliki Forest virus (SFV)-based expression vector, resulting in recombinant pSFV-ORF5.
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21 |
14614267
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The ORF5 gene encodes a major envelope glycoprotein (GP5), which is one of the three major proteins of porcine reproductive and respiratory syndrome virus (PRRSV).
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22 |
14614267
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The GP5 protein has been known to be a 24.5-26 kDa N-glycosylated envelope protein.
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23 |
14614267
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To produce the native form of GP5 in mammalian cells, we have cloned the ORF5 gene from PRRSV CNV-1 into the Semliki Forest virus (SFV)-based expression vector, resulting in recombinant pSFV-ORF5.
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24 |
15893859
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Alternative codon usage of PRRS virus ORF5 gene increases eucaryotic expression of GP(5) glycoprotein and improves immune response in challenged pigs.
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25 |
21175251
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Porcine reproductive and respiratory syndrome virus (PRRSV) ORF5 gene encoding an envelope glycoprotein involved in humoral immunity is the most variable protein-coding gene of PRRSV.
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26 |
23116484
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'Pei chiao' (AAA) have been transformed with the ORF5 gene of PRRSV envelope glycoprotein (GP5) using Agrobacterium-mediated transformation and have been confirmed.
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27 |
23525729
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Genetic diversity and evolutionary characterization of Chinese porcine reproductive and respiratory syndrome viruses based on NSP2 and ORF5.
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28 |
23525729
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To more fully understand the extent of genetic diversity of PRRSV in China, we analyzed the Nsp2 and ORF5 gene sequences of 35 representative PRRSV isolates from 2008 to 2012.
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29 |
23525729
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Sequence analysis revealed that the Nsp2 and ORF5 genes have undergone genetic variation.
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30 |
23525729
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Genetic diversity and evolutionary characterization of Chinese porcine reproductive and respiratory syndrome viruses based on NSP2 and ORF5.
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31 |
23525729
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To more fully understand the extent of genetic diversity of PRRSV in China, we analyzed the Nsp2 and ORF5 gene sequences of 35 representative PRRSV isolates from 2008 to 2012.
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32 |
23525729
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Sequence analysis revealed that the Nsp2 and ORF5 genes have undergone genetic variation.
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33 |
23525729
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Genetic diversity and evolutionary characterization of Chinese porcine reproductive and respiratory syndrome viruses based on NSP2 and ORF5.
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34 |
23525729
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To more fully understand the extent of genetic diversity of PRRSV in China, we analyzed the Nsp2 and ORF5 gene sequences of 35 representative PRRSV isolates from 2008 to 2012.
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35 |
23525729
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Sequence analysis revealed that the Nsp2 and ORF5 genes have undergone genetic variation.
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36 |
23650891
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In this study, the 603 bp complete major envelope protein encoding gene (ORF5) of 32 field PRRSV isolates from Vietnam collected during 2008-2012 were sequenced and analyzed.
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37 |
24136204
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Positive effects of porcine IL-2 and IL-4 on virus-specific immune responses induced by the porcine reproductive and respiratory syndrome virus (PRRSV) ORF5 DNA vaccine in swine.
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38 |
24136204
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The purpose of this study was to investigate the effects of porcine interleukin (IL)-2 and IL-4 genes on enhancing the immunogenicity of a porcine reproductive and respiratory syndrome virus ORF5 DNA vaccine in piglets.
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39 |
24136204
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Eukaryotic expression plasmids pcDNA-ORF5, pcDNA-IL-2, and pcDNA-IL-4 were constructed and then expressed in Marc-145 cells.
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40 |
24136204
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Characteristic fluorescence was observed at different times after pcDNA- ORF5 was expressed in the Marc-145 cells, and PCR products corresponding to ORF5, IL-2, and IL-4 genes were detected at 48 h.
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41 |
24136204
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Based on these data, healthy piglets were injected intramuscularly with different combinations of the purified plasmids: pcDNA-ORF5 alone, pcDNA-ORF5 + pcDNA-IL-2, pcDNA-ORF5 + pcDNA-IL-4, and pcDNA-ORF5 + pcDNA- IL-4 + pcDNA-IL-2.
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42 |
24136204
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The ensuing humoral immune responses, percentages of CD4(+) and CD8(+) T lymphocytes, proliferation indices, and interferon-g expression were analyzed.
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43 |
24136204
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Results revealed that the piglets co-immunized with pcDNA-ORF5 + pcDNA-IL-4 + pcDNA-IL-2 plasmids developed significantly higher antibody titers and neutralizing antibody levels, had significantly increased levels of specific T lymphocyte proliferation, elevated percentages of CD4(+) and CD8(+) T lymphocytes, and significantly higher IFN-γ production than the other inoculated pigs (p < 0.05).
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