CpG islands of hepatitis B virus genome isolated from Chinese patients
Gene, ISSN: 0378-1119, Vol: 561, Issue: 2, Page: 261-267
2015
- 5Citations
- 18Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations5
- Citation Indexes5
- CrossRef4
- Captures18
- Readers18
- 18
Article Description
There are differences in the distribution and length of HBV CpG islands and the viral mutations contribute greatly to the development of HBV-related diseases. However, little is known regarding the effects of such difference and mutations in HBV genotypes B and C sequences on the regulation of HBV gene expression and their clinical outcomes. To study the distribution, length and genetic trait of CpG islands in normal and mutant sequences of HBV genotypes B and C, 320 HBV isolates from Chinese patients were retrieved from GenBank. Programs CLUSTALX 1.83 and MethPrimer were employed to perform multiple sequence alignments and to predict CpG islands, respectively. 72.0% genotype B isolates contained three conventional CpG islands, and 76.1% genotype C only contained CpG islands II and III. 14.6% genotype B and 7.5% genotype C contained three novel CpG islands. In genotype B, lengths of conventional CpG islands between normal and mutant isolates exhibited substantial variations, but in genotype C, those were relatively stable. CpG island II could be “truncated” or “split”. “Truncated” region mutations were associated with structural and functional abnormalities of HBV genes. Rate of “split” CpG island II in genotype B was much higher than that in genotype C. In the majority of isolates from HCC and HBV–ACLF, genotype C lacked CpG island I and novel islands. Distribution, length and genetic trait of CpG islands in HBV genotypes B and C might affect their methylation status, and further affect regulation of HBV gene expression, leading to different clinical outcomes.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0378111915001845; http://dx.doi.org/10.1016/j.gene.2015.02.036; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84926161494&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/25688883; https://linkinghub.elsevier.com/retrieve/pii/S0378111915001845
Elsevier BV
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