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- Title
A novel cardiovirus in wild rats.
- Authors
Wang, Yan; Zhao, Jing; Zheng, Min; Liu, Zhijian; Li, Wang; Fu, Xingli; Lin, Yuan; Yuan, Jiaqi; Zhao, Jieji; Shen, Quan; Wang, Xiaochun; Wang, Hua; Yang, Shixing
- Abstract
Background: Cardioviruses cause severe illnesses in rodents and humans. In recent years, novel cardioviruses have been frequently found, which promoted further studies of the genetic diversity of cardioviruses. Using viral metagenomics, we genetically characterized a novel cardiovirus (named SX1) from wild rat feces. The genomic structure of SX1 shared similar features with those of the Theiler’s murine encephalomyelitis viruses, including a leader protein, four structural proteins and seven non-structural proteins. Phylogenetic analysis based on both structural proteins and non-structural proteins coding regions showed that SX1 was formed into a separate branch, being located between the branches of Theiler’s murine encephalomyelitis viruses and Thera viruses. Variable resides presented in the Ser/Thr rich domain of L protein, VP1 loops, and VP2 puffs distinguished SX1 from Theiler’s murine encephalomyelitis viruses, suggesting the different antigenicity and pathogenicity of SX1.
- Subjects
VIRAL genetics; METAGENOMICS; PHYLOGENY; HEART; THEILER'S murine encephalomyelitis virus; PROTEINS; NUCLEOTIDES; RATS; HEALTH
- Publication
Virology Journal, 2018, Vol 15, p1
- ISSN
1743-422X
- Publication type
Article
- DOI
10.1186/s12985-018-0968-9