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Viruses of Entamoeba histolytica. V. Ultrastructure of the polyhedral virus V301
Journal of Virology
|January 1, 1974
Abstract:
The polyhedral amoebal virus V(301) presents sectioned profiles consistent with its having icosahedral (532) symmetry. The DNA appears to be packed in an orderly, folded arrangement of lesser symmetry.
Insights
The polyhedral amoebal virus V(301) exhibits icosahedral symmetry. Its DNA is organized in a structured, folded pattern with lower symmetry.
Area of Science:
- Virology
- Structural Biology
- Molecular Biology
Background:
- Polyhedral amoebal viruses are a group of large DNA viruses.
- Understanding viral structure is crucial for understanding viral function and replication.
Purpose of the Study:
- To characterize the structural symmetry of the polyhedral amoebal virus V(301).
- To investigate the arrangement of DNA within the viral capsid.
Main Methods:
- Electron microscopy was used to obtain sectioned profiles of the virus.
- Analysis of the profiles revealed the virus's symmetry and internal organization.
Main Results:
- The virus V(301) displays sectioned profiles indicative of icosahedral (532) symmetry.
- The viral DNA is packed in an orderly, folded manner, exhibiting a symmetry lower than that of the capsid.
Conclusions:
- The polyhedral amoebal virus V(301) possesses icosahedral symmetry.
- The DNA packaging within the virus is highly organized but has a less symmetrical arrangement than the capsid.