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Target intelligence / Profile preview
Hepatitis B polymerase protein
- Molecular classification
- Enzyme, Reverse Transcriptase, Viral protein
01
Overview
The Hepatitis B virus (HBV) polymerase is a multi-domain enzyme essential for HBV replication. It functions as a reverse transcriptase, converting viral RNA into DNA within cytoplasmic capsids. The protein consists of Terminal Protein (TP), Spacer, Reverse Transcriptase (RT), and RNase H domains, each playing a crucial role in the replication process. It is a primary target for antiviral drugs, but resistance can develop due to mutations in the RT domain. The polymerase is essential for viral replication and is a major therapeutic target.
- Other names
- HBV polymeraseP proteinHBV reverse transcriptase
02
Mechanism of action
Inhibition of reverse transcriptase activity, leading to termination of DNA synthesis.
03
Biological functions
Reverse transcriptionDNA synthesisRNA degradationGenome replicationProtein priming
04
Disease associations
Hepatitis BChronic hepatitis BLiver diseaseViral infection
05
Safety considerations
Drug resistance development due to mutations in the RT domainLimited efficacy in clearing the virus completelyPotential for adverse effects associated with nucleos(t)ide analogs
06
Interacting drugs
Tenofovir
4 more in the full profile.
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