Target intelligence / Profile preview

DNA Polymerase Inhibition by Nucleoside Analog Incorporation (NA)

Target
NA
Molecular classification
Enzyme, DNA Polymerase, Reverse Transcriptase
01

Overview

Inhibition of DNA polymerases and/or reverse transcriptases through the incorporation of nucleoside analogs into nascent DNA strands, leading to chain termination and disruption of DNA synthesis. This is a common mechanism of action for many antiviral and anticancer drugs.

Other names
Nucleoside Analog IncorporationDNA Synthesis Enzyme InhibitionDNA Polymerase InhibitionReverse Transcriptase Inhibition by Nucleoside Analogs
02

Mechanism of action

Competitive substrate mimicry of natural nucleotides, leading to chain termination during DNA synthesis by DNA polymerases and reverse transcriptases upon incorporation into the DNA strand.

03

Biological functions

DNA replicationGenome duplicationCell cycle regulationApoptosis inductionViral replication
04

Disease associations

CancerViral infections
05

Safety considerations

MyelosuppressionDrug resistanceOff-target effects on host cell DNA replication
06

Interacting drugs

Cytarabine

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