Abstract
Human BK virus may cause nephropathy due to viral replication in patients who have undergone renal transplantation. However, the mechanism regulating replication of BKV is still not clear. Previous studies have suggested that epigenetic modifications may play a crucial role in virus replication. In this study, the DNA methylation profiles of five CpG sites located within the promoter/enhancer regions and nine CpG sites located within the early and late coding regions of the replicating BKV genome were investigated. BKV genomic DNA from mature virions and from the early and late phases of replicating BKV were examined for DNA methylation by bisulfite sequencing that covered 14 CpG sites. Our results showed that none of the examined BKV DNA from the various different stages of replication was methylated. This is the first report to analyze the methylation of BKV genomic DNA during viral replication. The results seem to indicate that methylation is not involved in regulation of BKV replication.



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Discover the latest articles and news from researchers in related subjects, suggested using machine learning.Abbreviations
- BKV:
-
BK virus
- JCV:
-
JC virus
- MCV:
-
Merkel cell polyomavirus
- TSV:
-
Trichodysplasia spinulosa polyomavirus
- HPyV:
-
Human polyomavirus
- PVN:
-
Polyomavirus nephropathy
- HBV:
-
Hepatitis B virus
- HPV:
-
Human papillomavirus
- EBV:
-
Estein–Barr virus
- HIV:
-
Human immunodeficiency virus
- IFA:
-
Immunofluorescent assay
- KSAV:
-
Kaposi’s Sarcoma-associated herpesvirus
- DNMT:
-
DNA methyltransferase
- LATs:
-
Latent-associated transcripts
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Acknowledgments
This study was supported by research grant from the National Science Council, Taiwan, ROC: NSC97-2320-B-194-002-MY3 to MWYC and NSC99-2321-B-194-001, and NSC97-2320-B-194-001-MY3 to DC.
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11262_2011_627_MOESM1_ESM.jpg
Fig. S1. Replication of BKV. Vero cells were infected by BKV. LT (a) and VP1 (b) were detected by immunofluorescent assay using anti-LT and anti-VP1 antibodies on day 3, 8, 13, 18, 23, and 28 post-infection. The percentage of positive cells were quantified and this is shown in panel c. (JPEG 817 kb)
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Chang, CF., Wang, M., Fang, CY. et al. Analysis of DNA methylation in human BK virus. Virus Genes 43, 201–207 (2011). https://doi.org/10.1007/s11262-011-0627-3
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DOI: https://doi.org/10.1007/s11262-011-0627-3


