Used in biomedical research to quantify levels of human gamma-glutamylcysteine synthetase (γ-ECS) in cell lysates, tissue extracts, and biological fluids. This assay helps assess the enzyme's expression and activity in studies related to oxidative stress, glutathione metabolism, and cellular defense mechanisms. Commonly applied in research on neurodegenerative diseases, liver disorders, cancer, and conditions involving redox imbalance. The kit enables high-throughput, sensitive, and specific detection, supporting both clinical research and drug development efforts targeting antioxidant pathways.