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Background Infection of glial cells by human neurotropic polyomavirus JC (JCV), the causative agent of the CNS demyelinating disease progressive multifocal leukoencephalopathy (PML), rapidly inflicts damage to cellular DNA. This activates DNA damage response (DDR) signaling including induction of expression of DNA repair factor Rad51. We previously reported that Rad51 co-operates with the transcription...
Agnoprotein is required for the successful completion of the JC virus (JCV) life cycle and was previously shown to interact with JCV large T-antigen (LT-Ag). Here, we further characterized agnoprotein's involvement in viral DNA replication. Agnoprotein enhances the DNA binding activity of LT-Ag to the viral origin (Ori) without directly interacting with DNA. The predicted amphipathic α-helix of agnoprotein...
The human polyomavirus JC (JCV) is the causative agent of the CNS demyelinating disease progressive multifocal leukoencephalopathy (PML). Infection by JCV is extremely common and after primary infection, JCV persists in a latent state. However, PML is a very rare disease suggesting that the virus is tightly regulated. Previously, we showed that NF-κB and C/EBPβ regulate the JCV early and late promoters...
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