What question did this study set out to answer?

This research aims to analyze the synthesis of virus-specific proteins in HeLa cells infected with encephalomyocarditis virus.

December 1, 1971Proceedings of the National Academy of SciencesOpen Access

Virus-Specific Proteins Synthesized in Encephalomyocarditis Virus-Infected HeLa Cells

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Population

Encephalomyocarditis virus-infected HeLa cells

Design

Preclinical

Authors

BBByron E. ButterworthCorewell Health Butterworth Hospital LHLinda HallUniversity of Manchester CSC. Martin StoltzfusUniversity of Iowa

Discussion

Member takes

Implication

No immediate clinical implications for viral infections; leaves open whether the cleavage model generalizes beyond this cell-culture system.

Key Points

This research aims to analyze the synthesis of virus-specific proteins in HeLa cells infected with encephalomyocarditis virus.
HeLa cells were infected with encephalomyocarditis virus and labeled with radioactive amino acids.
Protein synthesis was inhibited to isolate viral proteins, which were analyzed using sodium dodecyl sulfate-polyacrylamide gel electrophoresis.
Pulse-chase experiments and mapping techniques were used to study the translation and cleavage of the viral polypeptides.
Fifteen virus-specific polypeptides were detected with varying molecular weights from 9,000 to 100,000.
At least three primary gene products (A, F, C) with a cumulative weight of about 220,000 were generated, with A and C undergoing post-translational cleavages.
Stable proteins produced included alpha, beta, gamma, delta, E, F, G, H, and I, with a total molecular weight of approximately 230,000.

Structured PICO

Population

Encephalomyocarditis virus-infected HeLa cells

Intervention

Labeling viral proteins with radioactive amino acids and analysis by quantitative high-resolution electrophoresis on sodium dodecyl sulfate-polyacrylamide gels

Outcome

Detection and estimation of the molecular weight of virus-specific polypeptides and their cleavage sequence

This study identifies 15 encephalomyocarditis virus-specific polypeptides and proposes a model for their synthesis and post-translational cleavage.

Cite This Study

Butterworth et al. (1971) studied this question.

synapsesocial.com/papers/6a6fcb4cac440176ef287493 https://doi.org/10.1073/pnas.68.12.3083

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Implication

No immediate clinical implications for viral infections; leaves open whether the cleavage model generalizes beyond this cell-culture system.