Target intelligence / Profile preview

Cytochrome P450 family 2 subfamily C member 19 (None)

Target
None
Molecular classification
Enzyme, Cytochrome P450 monooxygenase, Mixed-function oxidase
01

Overview

Cytochrome P450 2C19 (CYP2C19) is a key enzyme in the cytochrome P450 superfamily, primarily expressed in the liver. It metabolizes a wide range of clinically important drugs, including antiplatelet agents, proton pump inhibitors, antidepressants, and anticonvulsants. Genetic polymorphisms in CYP2C19 significantly affect drug metabolism, impacting efficacy and safety.

Other names
CYP2C19
02

Mechanism of action

CYP2C19 catalyzes oxidation reactions that modify both endogenous compounds and xenobiotics (foreign substances such as drugs). This process typically increases water solubility for easier elimination from the body. For some drugs like clopidogrel (Plavix), CYP2C19 activates prodrugs into their active forms; for others like voriconazole or certain antidepressants, it deactivates them for excretion.

03

Biological functions

Drug metabolismProdrug activationDetoxificationOxidation reactions
04

Disease associations

Cardiovascular diseaseInfectionOther
05

Safety considerations

Variability in drug response due to genetic polymorphismsTreatment failure due to poor drug activationIncreased risk of side effects due to reduced drug clearanceIncreased risk of cardiovascular events with clopidogrel in poor metabolizers
06

Interacting drugs

Clopidogrel

5 more in the full profile.

07

Biomarkers

CYP2C19 genotype (e.g., *1, *2, *3, *17)

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