Influenza Virus Matrix Protein Is the Major Driving Force in Virus Budding

  • Gomez-Puertas P
  • Albo C
  • Perez-Pastrana E
  • et al.
188Citations
Citations of this article
138Readers
Mendeley users who have this article in their library.

Abstract

To get insights into the role played by each of the influenza A virus polypeptides in morphogenesis and virus particle assembly, the generation of virus-like particles (VLPs) has been examined in COS-1 cell cultures expressing, from recombinant plasmids, different combinations of the viral structural proteins. The presence of VLPs was examined biochemically, following centrifugation of the supernatants collected from transfected cells through sucrose cushions and immunoblotting, and by electron-microscopic analysis. It is demonstrated that the matrix (M1) protein is the only viral component which is essential for VLP formation and that the viral ribonucleoproteins are not required for virus particle formation. It is also shown that the M1 protein, when expressed alone, assembles into virus-like budding particles, which are released in the culture medium, and that the recombinant M1 protein accumulates intracellularly, forming tubular structures. All these results are discussed with regard to the roles played by the virus polypeptides during virus assembly.

Cite

CITATION STYLE

APA

Gomez-Puertas, P., Albo, C., Perez-Pastrana, E., Vivo, A., & Portela, A. (2000). Influenza Virus Matrix Protein Is the Major Driving Force in Virus Budding. Journal of Virology, 74(24), 11538–11547. https://doi.org/10.1128/jvi.74.24.11538-11547.2000

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free