Molecular Biology

, Volume 52, Issue 3, pp 453–457 | Cite as

A DNA Construct That Encodes the Rabies Virus Consensus Glycoprotein with a Proteasome Degradation Signal Induces Antibody Production with IgG2A Subtype Predominance

  • E. S. Starodubova
  • Yu. V. Kuzmenko
  • E. O. Pankova
  • A. A. Latanova
  • O. V. Preobrazhenskaya
  • V. L. Karpov
Molecular Cell Biology


The possibility of enhancing the immunogenicity of the rabies virus glycoprotein antigen encoded by a DNA vaccine has been investigated. Ubiquitin-like protein FAT10 has been attached to the N-terminus of the glycoprotein to target it to the proteasome and stimulate its presentation by MHC class I. Two forms of the protein, chimeric and original, have been detected in cells transfected with the DNA construct encoding the chimeric protein. The presence of the glycoprotein on the cell surface has been detected by immunostaining of transfected cells. The production of IgG and IgG2a antibodies has been more efficiently induced in mice immunized with the plasmid that encodes the chimeric protein than in those immunized with the plasmid that encodes unmodified glycoprotein. Moreover, the level of IgG2a antibodies exceeded the level of IgG1 antibodies, which indicates a preferential increase in the Th1 component of the immune response. The proposed DNA construct that encodes a modified glycoprotein with a proteasome degradation signal may be a promising DNA vaccine immunogen for post-exposure prophylaxis of rabies.


rabies virus glycoprotein DNA vaccine FAT10 proteasome 


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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • E. S. Starodubova
    • 1
  • Yu. V. Kuzmenko
    • 1
  • E. O. Pankova
    • 1
  • A. A. Latanova
    • 1
  • O. V. Preobrazhenskaya
    • 1
  • V. L. Karpov
    • 1
  1. 1.Engelhardt Institute of Molecular BiologyRussian Academy of SciencesMoscowRussia

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