Preparation of Recombinant Alphaviruses for Functional Studies of ADP-Ribosylation

Methods Mol Biol. 2018:1813:297-316. doi: 10.1007/978-1-4939-8588-3_21.

Abstract

Recently we characterized the mono(ADP-ribosyl) hydrolase (MAR hydrolase) activity of the macrodomain of nonstructural protein 3 (nsP3MD) of chikungunya virus. Using recombinant viruses with targeted mutations in the macrodomain, we demonstrated that hydrolase function is important for viral replication in cultured neuronal cells and for neurovirulence in mice. Here, we describe the general cell culture and animal model infection protocols for alphaviruses and the technical details for biochemical characterization of the MAR hydrolase activity of nsP3MD mutants and the preparation of recombinant viruses incorporating those mutations through site-directed mutagenesis of an infectious cDNA virus clone.

Keywords: Alphavirus; Chikungunya virus; In vitro transcription; Infectious cDNA clone; MAR hydrolase assay; Reverse genetics; Sindbis virus; Site-directed mutagenesis.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • ADP-Ribosylation / genetics*
  • Alphavirus / genetics*
  • Alphavirus / pathogenicity
  • Alphavirus Infections / genetics
  • Alphavirus Infections / virology
  • Animals
  • Cell Culture Techniques / methods
  • Cell Line
  • Disease Models, Animal
  • Mice
  • Molecular Biology / methods*
  • Mutagenesis, Site-Directed / methods
  • Neurons / virology
  • Viral Nonstructural Proteins / chemistry*
  • Viral Nonstructural Proteins / genetics
  • Virus Replication / genetics

Substances

  • Viral Nonstructural Proteins