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Covalent addition of a methyl group to adenosine N6 (m6A) is an evolutionarily conserved and common RNA modification that is thought to modulate several aspects of RNA metabolism. While the presence of multiple m6A editing sites on diverse viral RNAs was reported starting almost 40 years ago, how m6A editing affects virus replication has remained unclear. Here, we used photo-crosslinking-assisted...
RNA-guided endonucleases or CRISPR/Cas systems have been widely employed for gene engineering/DNA editing applications, and have recently been used against a variety of dsDNA viruses as a potential therapeutic. However, in vivo delivery to specific tissue reservoirs using adeno-associated virus (AAV) vectors is problematic due to the large coding requirement for the principal effector commonly used...
Despite the existence of an excellent prophylactic vaccine and the development of highly effective inhibitors of the viral polymerase, chronic hepatitis B virus (HBV) infection remains a major source of morbidity and mortality, especially in Africa and Asia. A significant problem is that, while polymerase inhibitors can effectively prevent the production of viral genomic DNA from pre-genomic RNA transcripts,...
Hepatitis B virus (HBV) remains a major human pathogen, with over 240 million individuals suffering from chronic HBV infections. These can persist for decades due to the lack of therapies that can effectively target the stable viral covalently closed circular (ccc) DNA molecules present in infected hepatocytes. Using lentiviral transduction of a bacterial Cas9 gene and single guide RNAs (sgRNAs) specific...
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