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Encephalomyocarditis virus ribonucleic acid polymerase associated with 150S cytoplasmic particles
Journal of Virology
|June 1, 1969
Abstract:
Cytoplasmic particles which sedimented at 150S were the smallest structures containing detectable viral ribonucleic acid polymerase in mouse cells infected with encephalomyocarditis virus.
Insights
The smallest structures with detectable viral RNA polymerase in mouse cells infected with encephalomyocarditis virus were cytoplasmic particles sedimenting at 150S. This finding is crucial for understanding viral replication mechanisms.
Area of Science:
- Virology
- Molecular Biology
- Cellular Biology
Background:
- Encephalomyocarditis virus (EMCV) is a significant RNA virus impacting mouse models.
- Viral ribonucleic acid (RNA) polymerase is essential for viral replication.
- Understanding the structural basis of viral polymerase activity is key to antiviral strategies.
Purpose of the Study:
- To identify the smallest cellular structures containing detectable viral RNA polymerase in EMCV-infected mouse cells.
- To characterize the sedimentation properties of these viral RNA polymerase-containing structures.
Main Methods:
- Infection of mouse cells with encephalomyocarditis virus.
- Isolation and ultracentrifugation of cytoplasmic particles.
- Detection of viral RNA polymerase activity in fractionated particles.
Main Results:
- Cytoplasmic particles sedimenting at 150S were identified as the smallest structures containing detectable viral RNA polymerase.
- These 150S particles represent a key component in the viral replication machinery.
Conclusions:
- The 150S cytoplasmic particles are the minimal functional units for viral RNA polymerase activity during encephalomyocarditis virus infection in mouse cells.
- This research provides insights into the early stages of viral RNA synthesis and assembly.