Target intelligence / Profile preview

DNA Helicase-Primase Complex (H-P Complex)

Target
H-P Complex
Molecular classification
Enzyme Complex, Helicase, Primase
01

Overview

The DNA helicase–primase complex is a multi-protein assembly essential for the replication of double-stranded DNA in various organisms, notably in herpesviruses. This complex coordinates two critical enzymatic activities at the replication fork: unwinding duplex DNA (helicase activity) and synthesizing short RNA primers required for DNA polymerases to initiate synthesis. It is an established antiviral drug target.

Other names
Helicase-PrimaseUL5-UL52-UL8 complex (HSV-1)BBLF4-BSLF1-BBLF2/3 complex (EBV)
02

Mechanism of action

Blocks helicase and/or primase activity, inhibiting viral DNA replication.

03

Biological functions

DNA replicationDNA unwindingRNA primer synthesisGenome duplication
04

Disease associations

Infection
05

Safety considerations

Potential for drug resistance mutationsOff-target effects on cellular DNA replication
06

Interacting drugs

Amenamevir

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