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Glutathione Biosynthesis Pathway (GSH Pathway)
- Target
- GSH Pathway
- Molecular classification
- Metabolic Pathway
01
Overview
The glutathione biosynthesis pathway is an ATP-dependent metabolic process responsible for the production of glutathione (GSH). GSH is critical for antioxidant defense, detoxification, redox homeostasis, and cell proliferation. The pathway involves two enzymatic steps: the formation of γ-glutamylcysteine from glutamate and cysteine, catalyzed by glutamate–cysteine ligase (GCL), and the addition of glycine to γ-glutamylcysteine to form glutathione, catalyzed by glutathione synthetase (GS).
- Other names
- Glutathione SynthesisGSH Synthesis
02
Mechanism of action
Upregulation or inhibition of pathway enzymes to modulate GSH levels
03
Biological functions
Antioxidant defenseDetoxificationRedox homeostasisCysteine reservoirProtein S-glutathionylation
04
Disease associations
Oxidative stress related diseasesHemolytic anemiaNeurological disorders
05
Safety considerations
Altering GSH levels can have complex effects on cellular functionPotential for off-target effects when targeting pathway enzymesEarly lethality with inadequate GSH levels
06
Biomarkers
GSH levelsGSSG levelsGCLC expressionGCLM expressionGS expression
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