Cellular Thiol Buffering
Glutathione is studied as a primary intracellular redox buffer regulating reduced and oxidized thiol balance.
Overview
What is Glutathione?
Glutathione is an endogenous tripeptide composed of glutamate, cysteine, and glycine. It is widely studied in redox biology, antioxidant systems, detoxification pathways, and cellular stress-response models as a central thiol buffer in mammalian cells.
Glutathione (Reduced L-Glutathione) is supplied strictly as a reference material for in vitro and preclinical investigation. All characterization data described here is drawn from peer-reviewed literature and laboratory analysis; nothing herein constitutes a claim of clinical effect in humans.
Investigational Scope
Documented Research Areas
The following domains summarize directions explored across published studies and laboratory models. Each reflects observations reported in rodent models, in vitro systems, or the peer-reviewed record.
Antioxidant Enzyme Systems
Research examines glutathione peroxidase and glutathione reductase pathways in oxidative-stress models.
Conjugation Pathways
Glutathione S-transferase reactions are studied for xenobiotic conjugation and detoxification biology.
Mitochondrial Redox Models
Mitochondrial glutathione pools are investigated in models of cellular energy stress and apoptosis signaling.
Proposed Mechanism
Mechanistic Pathway
Mechanistic steps below are hypothesized from in vitro assays and animal-model data reported in the literature. They describe biochemical interactions observed under controlled experimental conditions.
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1
Reduced Thiol Donation
The cysteine thiol group donates reducing equivalents to neutralize reactive species and maintain protein thiol status.
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2
Glutathione Peroxidase Substrate
Glutathione serves as a substrate for glutathione peroxidases that reduce hydrogen peroxide and lipid peroxides.
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3
GSSG Recycling
Oxidized glutathione is recycled by glutathione reductase using NADPH, maintaining cellular redox capacity.
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4
Phase II Conjugation
Glutathione conjugation through GST enzymes supports research into electrophile handling and detoxification pathways.
Technical Data
Molecular Specifications
| Amino Acid Sequence | gamma-Glu-Cys-Gly |
|---|---|
| Molecular Weight | 307.3 g/mol |
| Molecular Formula | C10H17N3O6S |
| CAS Number | 70-18-8 |
| Storage | -20°C long-term, protected from light and moisture |
References
Selected Literature
The following peer-reviewed references informed the research summaries on this page. Citations are provided for scientific context only.
- Meister A & Anderson ME. (1983). Glutathione. Annual Review of Biochemistry, 52, 711-760.
- Forman HJ, et al. (2009). Glutathione: overview of its protective roles, measurement, and biosynthesis. Molecular Aspects of Medicine, 30(1-2), 1-12.
- Lu SC. (2013). Glutathione synthesis. Biochimica et Biophysica Acta, 1830(5), 3143-3153.
- Dringen R. (2000). Metabolism and functions of glutathione in brain. Progress in Neurobiology, 62(6), 649-671.
- Deponte M. (2013). Glutathione catalysis and the reaction mechanisms of glutathione-dependent enzymes. Biochimica et Biophysica Acta, 1830(5), 3217-3266.
Research Disclaimer
This product is intended strictly for laboratory research purposes only. It is not a drug, food, cosmetic, or dietary supplement and is not intended to diagnose, treat, cure, or prevent any disease. It is not for human or animal consumption. All information presented is derived from published scientific literature and is provided for educational reference only. By purchasing, the buyer affirms they are a qualified researcher or institution and assume full responsibility for the safe and lawful handling of this material.