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- Title
Chinese Giant Salamander Iridovirus 025L Is a Viral Essential Gene.
- Authors
Liu, Zijing; Xie, Daofa; Nong, Shirong; Wu, Yingzi; Huang, Suxian; He, Xianhui; Zhou, Tianhong; Li, Wei
- Abstract
Ranavirus is a large nucleocytoplasmic DNA virus. Chinese giant salamander iridovirus (CGSIV) belongs to the ranavirus genus, and its replication involves a series of essential viral genes. Viral PCNA is a gene closely associated with viral replication. CGSIV−025L also encodes PCNA−like genes. We have described the function of CGSIV−025L in virus replication. The promoter of CGSIV−025L is activated during viral infection, and it is an early (E) gene that can be effectively transcribed after viral infection. CGSIV−025L overexpression promoted viral replication and viral DNA replication. siRNA interfered with CGSIV−025L expression and attenuated viral replication and viral DNA replication. The Δ025L−CGSIV strain with the deletion of CGSIV−025L could not replicate normally and could be rescued by the replenishment of 025L. CGSIV−025L was proven to be an essential gene for CGSIV by overexpression, interference, and deletion mutation experiments. CGSIV−025L was found to interact with CGSIV−062L by yeast two−hybrid, CoIP, and GST pulldown. Thus, the current study demonstrated that CGSIV−025L is an essential gene of CGSIV, which may be involved in viral infection by participating in viral DNA replication and interacting with replication−related proteins.
- Subjects
VIRAL genes; DNA replication; VIRAL DNA; GENETIC overexpression; VIRAL replication; PLANT viruses
- Publication
Viruses (1999-4915), 2023, Vol 15, Issue 3, p617
- ISSN
1999-4915
- Publication type
Article
- DOI
10.3390/v15030617