Analysis of a Putative Late Domain Using an Ebola Virus Transcription and Replication-Competent Virus-Like Particle System

J Infect Dis. 2018 Nov 22;218(suppl_5):S355-S359. doi: 10.1093/infdis/jiy247.

Abstract

The Ebola virus (EBOV) matrix protein VP40 drives budding of virions and encodes 2 overlapping late domain motifs at amino acid positions 7-13 (PTAPPEY). However, these motifs are not absolutely essential for replication in cell culture, and recently a potential third late domain motif (YPx(6)I) was proposed at amino acid positions 18-26 of VP40. To analyze the importance of this motif in viral budding, we used a transcription and replication-competent virus-like particle system. Using this system, we show that this motif does not contribute to EBOV budding or particle propagation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Motifs / genetics
  • Amino Acid Sequence
  • Cell Line
  • Ebolavirus / genetics*
  • HEK293 Cells
  • Hemorrhagic Fever, Ebola / virology*
  • Host-Pathogen Interactions / genetics
  • Humans
  • Nucleoproteins
  • Transcription, Genetic / genetics*
  • Viral Core Proteins
  • Virion / genetics
  • Virus Release / genetics
  • Virus Replication / genetics*

Substances

  • Nucleoproteins
  • Viral Core Proteins
  • nucleoprotein VP40, Ebola virus