A Concerted Action of Hepatitis C Virus P7 and Nonstructural Protein 2 Regulates Core Localization at the Endoplasmic Reticulum and Virus Assembly
2011

HCV p7 and NS2 Proteins Regulate Core Localization and Virus Assembly

publication 10 minutes Evidence: high

Author Information

Author(s): Boson Bertrand, Granio Ophélia, Bartenschlager Ralf, Cosset François-Loïc

Primary Institution: Université de Lyon, Lyon, France

Hypothesis

The study investigates how the hepatitis C virus proteins p7 and NS2 influence the localization of the core protein and the assembly of the virus.

Conclusion

The study identifies p7 and NS2 as key determinants that govern the subcellular localization of HCV core protein and are required for the initiation of virus assembly.

Supporting Evidence

  • Core protein localization is influenced by the presence of p7 and NS2.
  • High-titer HCV strains show different core localization patterns compared to low-titer strains.
  • Core-E2 colocalization at the ER is necessary for efficient virus assembly.

Takeaway

This research shows that two proteins from the hepatitis C virus help the virus put itself together by making sure a key part is in the right place inside the cell.

Methodology

The study used confocal microscopy and subcellular fractionation to analyze the localization of core protein in HCV-infected cells.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.ppat.1002144

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