Target intelligence / Profile preview

Orthopoxvirus DNA Polymerase (OPV Pol)

Target
OPV Pol
Molecular classification
Enzyme, DNA-dependent DNA polymerase, B-family DNA polymerase, Uracil-DNA glycosylase
01

Overview

Orthopoxvirus DNA polymerase is an essential multi-subunit enzyme complex required for faithful viral genome duplication and repair. Its unique assembly—including both canonical B-family features and specialized cofactors—enables efficient cytoplasmic replication while providing multiple points amenable to therapeutic intervention against poxviral diseases such as smallpox or mpox/monkeypox.

Other names
MPXV DNA PolymeraseVaccinia Virus DNA PolymeraseF8-A22-E4 complex (MPXV)E9-A20-D4 complex (Vaccinia)
02

Mechanism of action

Inhibition of viral DNA synthesis

03

Biological functions

Genome replicationDNA synthesisProofreadingBase excision repairViral propagation
04

Disease associations

Smallpox (Variola virus infection)Monkeypox (MPXV infection)CowpoxOrthopoxvirus infections
05

Safety considerations

Potential for resistance developmentOff-target effects on host cell polymerases (though less likely due to structural differences)

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