The M25 gene products are critical for the cytopathic effect of mouse cytomegalovirus.
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Keyser, Kirsten A
MetadataShow full item record
AbstractCell rounding is a hallmark of the cytopathic effect induced by cytomegaloviruses. By screening a panel of deletion mutants of mouse cytomegalovirus (MCMV) a mutant was identified that did not elicit cell rounding and lacked the ability to form typical plaques. Altered cell morphology was assigned to the viral M25 gene. We detected an early 2.8 kb M25 mRNA directing the synthesis of a 105 kDa M25 protein, and confirmed that a late 3.1 kb mRNA encodes a 130 kDa M25 tegument protein. Virions lacking the M25 tegument protein were of smaller size because the tegument layer between capsid and viral envelope was reduced. The ΔM25 mutant did not provoke the rearrangement of the actin cytoskeleton observed after wild-type MCMV infection, and isolated expression of the M25 proteins led to cell size reduction, confirming that they contribute to the morphological changes. Yields of progeny virus and cell-to-cell spread of the ΔM25 mutant in vitro were diminished and replication in vivo was impaired. The identification of an MCMV gene involved in cell rounding provides the basis for investigating the role of this cytopathic effect in CMV pathogenesis.
CitationThe M25 gene products are critical for the cytopathic effect of mouse cytomegalovirus. 2017, 7 (1):15588 Sci Rep
AffiliationHelmholtz-Zentrum für Infektionsforschung GmbH, Inhoffenstr. 7, 38124Braunschweig, Germany.
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-sa/4.0/
- The murine cytomegalovirus M25 open reading frame encodes a component of the tegument.
- Authors: Wu CA, Carlson ME, Henry SC, Shanley JD
- Issue date: 1999 Sep 30
- Murine Cytomegalovirus Glycoprotein O Promotes Epithelial Cell Infection <i>In Vivo</i>.
- Authors: Yunis J, Farrell HE, Bruce K, Lawler C, Wyer O, Davis-Poynter N, Brizić I, Jonjić S, Adler B, Stevenson PG
- Issue date: 2019 Feb 1
- Suppression of murine cytomegalovirus (MCMV) replication with a DNA vaccine encoding MCMV M84 (a homolog of human cytomegalovirus pp65).
- Authors: Morello CS, Cranmer LD, Spector DH
- Issue date: 2000 Apr
- Atomic structures and deletion mutant reveal different capsid-binding patterns and functional significance of tegument protein pp150 in murine and human cytomegaloviruses with implications for therapeutic development.
- Authors: Liu W, Dai X, Jih J, Chan K, Trang P, Yu X, Balogun R, Mei Y, Liu F, Zhou ZH
- Issue date: 2019 Feb
- Genetic analyses of gene function and pathogenesis of murine cytomegalovirus by transposon-mediated mutagenesis.
- Authors: Lee M, Abenes G, Zhan X, Dunn W, Haghjoo E, Tong T, Tam A, Chan K, Liu F
- Issue date: 2002 Aug