Target intelligence / Profile preview

Ribonuclease H (RNase H)

Target
RNase H
Molecular classification
Enzyme, Endoribonuclease
01

Overview

RNase H is a family of endoribonucleases that specifically hydrolyze the RNA strand of RNA-DNA hybrids. These enzymes are found in all domains of life and play crucial roles in DNA replication, repair, transcription, and viral replication. There are three main classes: RNase H1, RNase H2, and RNase H3. RNase H activity is essential for maintaining genome stability and preventing the accumulation of aberrant nucleic acid structures. Inhibiting viral RNases H is a potential antiviral therapeutic strategy.

Other names
RNase H1RNase H2RNase H3
02

Mechanism of action

Hydrolysis of RNA strand in RNA-DNA hybrids; inhibition of viral RNase H

03

Biological functions

Removal of RNA primers during DNA replicationR-loop resolutionDNA repair intermediate processingViral RNA degradation (retroviruses)Genome stability maintenance
04

Disease associations

Aicardi-Goutières syndromeGenome instabilityInfection (viral)Other
05

Safety considerations

Potential for off-target effectsResistance development (viral RNase H inhibitors)

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