Biosynthesis and Localization of the Autographa californica Nuclear Polyhedrosis Virus 25K Gene Product
Identifieur interne : 004214 ( Main/Exploration ); précédent : 004213; suivant : 004215Biosynthesis and Localization of the Autographa californica Nuclear Polyhedrosis Virus 25K Gene Product
Auteurs : Robert L. Harrison [États-Unis] ; Max D. Summers [États-Unis]Source :
- Virology [ 0042-6822 ] ; 1995.
Abstract
Abstract: Mutations of the AcMNPV 25K gene are associated with the "few polyhedra" phenotype (M. J. Fraser et al., 1983, J. Virol. 47, 287 300; B. Beames and M. D. Summers, 1989, Virology 168, 344-353). Polyclonal antisera was produced and used to investigate the time course of expression and localization of the 25K protein in infected cells. Western blot analysis detected 25K protein in both cytosolic and nuclear extracts from 18-24 hr p.i. through 96 hr p.i, and also in purified viral occlusions, but not in purified virions. Immunogold electron microscopy revealed that 25K protein was predominantly associated with amorphous cytoplasmic structures and to a lesser extent with a more electron-dense structure in the nucleus. Viral occlusions in cell sections were not specifically labeled by 25K antibody. Observations of purified viral occlusions and nuclei prepared for immungold EM revealed the presence of contaminating amorphous material that was labeled with 25K antibody.
Url:
DOI: 10.1006/viro.1995.1150
Affiliations:
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Harrison</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Texas</region></placeName><wicri:cityArea>Department of Biochemistry and Biophysics and Entomology, Texas A&M University, College Station, Texas 77843; The Center for Advanced Invertebrate Molecular Sciences, Institute of Biosciences and Technology, College Station, Texas 77843-2475; and The Texas Agricultural Experiment Station, College Station</wicri:cityArea></affiliation></author><author><name sortKey="Summers, Max D" sort="Summers, Max D" uniqKey="Summers M" first="Max D." last="Summers">Max D. Summers</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Texas</region></placeName><wicri:cityArea>Department of Biochemistry and Biophysics and Entomology, Texas A&M University, College Station, Texas 77843; The Center for Advanced Invertebrate Molecular Sciences, Institute of Biosciences and Technology, College Station, Texas 77843-2475; and The Texas Agricultural Experiment Station, College Station</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Virology</title><title level="j" type="abbrev">YVIRO</title><idno type="ISSN">0042-6822</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1995">1995</date><biblScope unit="volume">208</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="279">279</biblScope><biblScope unit="page" to="288">288</biblScope></imprint><idno type="ISSN">0042-6822</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0042-6822</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Mutations of the AcMNPV 25K gene are associated with the "few polyhedra" phenotype (M. J. Fraser et al., 1983, J. Virol. 47, 287 300; B. Beames and M. D. Summers, 1989, Virology 168, 344-353). Polyclonal antisera was produced and used to investigate the time course of expression and localization of the 25K protein in infected cells. Western blot analysis detected 25K protein in both cytosolic and nuclear extracts from 18-24 hr p.i. through 96 hr p.i, and also in purified viral occlusions, but not in purified virions. Immunogold electron microscopy revealed that 25K protein was predominantly associated with amorphous cytoplasmic structures and to a lesser extent with a more electron-dense structure in the nucleus. Viral occlusions in cell sections were not specifically labeled by 25K antibody. Observations of purified viral occlusions and nuclei prepared for immungold EM revealed the presence of contaminating amorphous material that was labeled with 25K antibody.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Texas</li></region></list><tree><country name="États-Unis"><region name="Texas"><name sortKey="Harrison, Robert L" sort="Harrison, Robert L" uniqKey="Harrison R" first="Robert L." last="Harrison">Robert L. Harrison</name></region><name sortKey="Summers, Max D" sort="Summers, Max D" uniqKey="Summers M" first="Max D." last="Summers">Max D. Summers</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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