We report the identification and analysis of a full sequence of a novel polyomavirus from a brushtail possum () termed possum polyomavirus (PPyV). The sequence was obtained from the next-generation sequencing assembly during an investigation into the aetiological agent for a neurological disease of possums termed wobbly possum disease (WPD), but the virus was not aetiologically involved in WPD. The PPyV genome was 5,224 nt long with the organisation typical for polyomaviruses, including early (large and small T antigens) and late (Viral Protein 1 (VP1), VP2, and VP3) coding regions separated by the non-coding control region of 465 nt. PPyV clustered with betapolyomaviruses in the WUKI clade but showed less than 60 per cent identity to any of the members of this clade. We propose that PPyV is classified within a new species in the genus . These data add to our limited knowledge of marsupial viruses and their evolution.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9662318 | PMC |
http://dx.doi.org/10.1093/ve/veac096 | DOI Listing |
Virol J
January 2025
Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Acute kidney injury (AKI) is a condition that can result in changes in both urine production and creatinine levels in the bloodstream, complicating the treatment process and worsening outcomes for many hospitalized patients. BK polyomavirus (BKPyV), a member of the Polyomaviridae family, is prevalent in the population and remains latent in the body. It can reactivate in individuals with a compromised immune system, particularly post-kidney transplant, and can activate various transcription factors and immune mediators.
View Article and Find Full Text PDFAnn Diagn Pathol
December 2024
Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, United States - 77030.
BK Polyomavirus nephropathy (PVN) with definitive diagnosis on biopsy, presents incidentally or with varying degrees of graft dysfunction. Banff working group on PVN has proposed a novel scoring system in renal biopsies, to identify patients with higher risk of graft failure. In this study, we attempted to validate the Banff scoring system at index biopsies and correlate with a novel index score, plasma BK-virus load and graft outcome.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
School of Chemical Engineering, Faculty of Science, Engineering and Technology, University of Adelaide, Adelaide 5005, Australia. Electronic address:
The development of modular virus-like particle (VLP) vaccine platforms with genetically inserted antigens in viral structural proteins shows great promise for advancing vaccine technology. However, the instability of many constructs leads to trial-and-error approaches, and the challenge of predicting stability based solely on amino acid sequences remains unresolved, yet highly appealing. This study evaluates the stability of wild-type murine polyomavirus (MPV) VP1 capsomeres and three engineered chimeric variants using molecular dynamics (MD) simulations and laboratory experiments.
View Article and Find Full Text PDFVirol J
November 2024
Institute of Biotechnology, Life Sciences Center, Vilnius University, Saulėtekio al. 7, Vilnius, LT-10257, Lithuania.
Background: The garden dormouse (Eliomys quercinus) has experienced a significant population decline across Europe in recent decades. While habitat loss and climate change are often cited as primary factors, pathogen exposure, either to novel or to previously known, may play a role in such a decline. This study aimed to investigate the presence of polyomaviruses in garden dormice, given that these viruses are highly prevalent and can cause disease, particularly in immunocompromised individuals.
View Article and Find Full Text PDFJ Virol
December 2024
Transplantation & Clinical Virology, Department of Biomedicine, University of Basel, Basel, Switzerland.
BK polyomavirus (BKPyV) contributes to premature renal failure in 10%-20% of kidney transplant recipients. Current treatment relies on reducing immunosuppression to regain BKPyV-specific immune control. Subsequently, declining allograft function may result from persisting viral cytopathology, BKPyV-specific immune reconstitution, or alloimmunity/rejection, all being poorly distinguishable by current histological or molecular approaches.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!