DOI: 10.1128/jvi.77.14.7863-7871.2003. The Tailless Icosahedral Membrane Virus PRD1 Localizes the Proteins Involved in Genome Packaging and Injection at a Unique Vertex

The Tailless Icosahedral Membrane Virus PRD1 Localizes the Proteins Involved in Genome Packaging and Injection at a Unique Vertex

10.1128/jvi.77.14.7863-7871.2003

Crossref journal-article

American Society for Microbiology

Journal of Virology (235)

Abstract

ABSTRACT The double-stranded DNA (dsDNA) virus PRD1 carries its genome in a membrane surrounded by an icosahedral protein shell. The shell contains 240 copies of the trimeric P3 protein arranged with a pseudo T = 25 triangulation that is reminiscent of the mammalian adenovirus. DNA packaging and infection are believed to occur through the vertices of the particle. We have used immunolabeling to define the distribution of proteins on the virion surface. Antibodies to protein P3 labeled the entire surface of the virus. Most of the 12 vertices labeled with antibodies directed against proteins P5, P2, and P31. These proteins are known to function in virus binding to the cell surface. Proteins P6, P11, and P20 were found on a single vertex per virion. The P6 and P20 proteins are believed to function in DNA packaging. Protein P11 is a pilot protein that is involved in a complex that mediates the early stages of DNA entry to the host cell. Labeling with antibodies to P5 or P2 did not affect the labeling of P6, the unique vertex protein. Labeling with antibodies to the unique vertex protein P6 interfered with the labeling by antibodies to the unique vertex protein P20. We conclude that PRD1 utilizes 11 of its vertices for initial receptor binding. It utilizes a single, unique vertex for both DNA packing during assembly and DNA delivery during infection.

Bibliography

Gowen, B., Bamford, J. K. H., Bamford, D. H., & Fuller, S. D. (2003). The Tailless Icosahedral Membrane Virus PRD1 Localizes the Proteins Involved in Genome Packaging and Injection at a Unique Vertex. Journal of Virology, 77(14), 7863â7871.

Authors 4

Brent Gowen (first)
Jaana K. H. Bamford (additional)
Dennis H. Bamford (additional)
Stephen D. Fuller (additional)

References 58 Referenced 54

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Dates

Type	When
Created	22 years, 1 month ago (June 26, 2003, 1:57 p.m.)
Deposited	3 years, 5 months ago (March 5, 2022, 2:51 a.m.)
Indexed	4 months, 2 weeks ago (April 8, 2025, 10:18 p.m.)
Issued	22 years, 1 month ago (July 15, 2003)
Published	22 years, 1 month ago (July 15, 2003)
Published Print	22 years, 1 month ago (July 15, 2003)

Funders 0

None

BibTeX

@article{Gowen_2003, title={The Tailless Icosahedral Membrane Virus PRD1 Localizes the Proteins Involved in Genome Packaging and Injection at a Unique Vertex}, volume={77}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.77.14.7863-7871.2003}, DOI={10.1128/jvi.77.14.7863-7871.2003}, number={14}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Gowen, Brent and Bamford, Jaana K. H. and Bamford, Dennis H. and Fuller, Stephen D.}, year={2003}, month=jul, pages={7863–7871} }

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