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Hepatitis B virus DNA polymerase is a hepatitis B viral protein. [ 1 ] [ 2 ] It is a DNA polymerase that can use either DNA or RNA templates and a ribonuclease H that cuts RNA in the duplex. Both functions are supplied by the reverse transcriptase (RT) domain.
Hepatitis B virus (HBV) is a partially double-stranded DNA virus, [1] a species of the genus Orthohepadnavirus and a member of the Hepadnaviridae family of viruses. [ 2 ] [ 3 ] This virus causes the disease hepatitis B .
HBeAg is a hepatitis B viral protein, produced by the HBcAg reading frame. It is an indicator of active viral replication ; this means the person infected with Hepatitis B can likely transmit the virus on to another person (i.e. the person is infectious).
HBcAg (core antigen) is a hepatitis B viral protein. [ 1 ] [ 2 ] It is an indicator of active viral replication; this means the person infected with Hepatitis B can likely transmit the virus on to another person (i.e. the person is infectious).
Hepatitis B virus replication. The life cycle of hepatitis B virus is complex. Hepatitis B is one of a few known pararetroviruses: non-retroviruses that still use reverse transcription in their replication process. The virus gains entry into the cell by binding to NTCP [51] on the surface and being endocytosed. Because the virus multiplies via ...
A reverse transcriptase (RT) is an enzyme used to convert RNA genome to DNA, a process termed reverse transcription.Reverse transcriptases are used by viruses such as HIV, COVID-19, and hepatitis B to replicate their genomes, by retrotransposon mobile genetic elements to proliferate within the host genome, and by eukaryotic cells to extend the telomeres at the ends of their linear chromosomes.
Depending on the virus, a variety of genetic changes can occur in the host cell. In the case of a lytic cycle virus, the cell will only survive long enough to the replication machinery to be used to create additional viral units. In other cases, the viral DNA will persist within the host cell and replicate as the cell replicates.
CccDNA is associated with the hepatitis B virus (HBV), where the virus constructs its plasmid through covalently linking its bonds. The histone-containing region of the nucleus within the virus is where cccDNA is commonly found, usually interacting with the histones similar to that of chromatin .