Related Experiment Video
Updated: Jul 10, 2026

Isolation and Quantification of Epstein-Barr Virus from the P3HR1 Cell Line
Published on: September 28, 2022
Xeroderma pigmentosum C is involved in Epstein Barr virus DNA replication
Chih-Chung Lu1, Yi-Chun Chen1, Jiin-Tarng Wang1
1Graduate Institute and Department of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan 100, PR China.
Abstract:
Cellular mismatch and base-excision repair machineries have been shown to be involved in Epstein-Barr Virus (EBV) lytic DNA replication. We report here that nucleotide-excision repair (NER) may also play an important role in EBV lytic DNA replication. Firstly, the EBV BGLF4 kinase interacts with xeroderma pigmentosum C (XPC), the critical DNA damage-recognition factor of NER, in yeast and in vitro, as demonstrated by yeast two-hybrid and glutathione S-transferase pull-down assays. Simultaneously, XPC was shown, by indirect immunofluorescence and co-immunoprecipitation assays, to interact and colocalize with BGLF4 in EBV-positive NA cells undergoing lytic viral replication. In addition, the efficiency of EBV DNA replication was reduced about 30-40 % by an XPC small interfering RNA. Expression of BGLF4 enhances cellular DNA-repair activity in p53-defective H1299/bcl2 cells in a host-cell reactivation assay. This enhancement was not observed in the XPC-mutant cell line XP4PA-SV unless complemented by ectopic XPC, suggesting that BGLF4 may stimulate DNA repair in an XPC-dependent manner. Overall, we suggest that the interaction of BGLF4 and XPC may be involved in DNA replication and repair and thereby enhance the efficiency of viral DNA replication.
More Related Videos
09:43An Efficient and Simple Method to Establish NK and T Cell Lines from Patients with Chronic Active Epstein-Barr Virus Infection
Published on: March 30, 2018
08:44Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis
Published on: September 7, 2022
Related Concept Videos
Nucleotide Excision Repair
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Nucleotide Excision Repair
Long-patch Base Excision Repair
Euchromatin
Euchromatin is the less dense region of the chromatin and stains lighter. Euchromatin contains histone H3 extensively...
S-Cdk Initiates DNA Replication
Two states at the origin of replication
In eukaryotes, the initiation of replication occurs at many sites on the chromosomes, called the origins of replication.
S-Cdk Initiates DNA Replication
Two states at the origin of replication
In eukaryotes, the initiation of replication occurs at many sites on the chromosomes, called the origins of replication.