The MGST1 (Microsomal Glutathione S-Transferase 1) antibody is a research tool targeting the MGST1 protein, a membrane-bound enzyme integral to cellular detoxification and oxidative stress response. MGST1 belongs to the glutathione S-transferase superfamily, which catalyzes the conjugation of glutathione to electrophilic substrates, facilitating the neutralization of reactive oxygen species (ROS) and xenobiotics. Unlike cytosolic GSTs, MGST1 is localized to the endoplasmic reticulum and mitochondrial-associated membranes, playing a critical role in lipid peroxidation regulation and apoptosis modulation. Its involvement in drug metabolism and resistance has made it a focus in cancer research, particularly in studying chemotherapeutic resistance mechanisms. MGST1 overexpression has been observed in various cancers, including liver and colorectal carcinomas, correlating with poor prognosis. Additionally, MGST1 is implicated in neurodegenerative diseases like Alzheimer’s, where oxidative stress contributes to pathogenesis. Antibodies against MGST1 are essential for detecting protein expression via techniques such as Western blotting, immunohistochemistry, and immunofluorescence. They help elucidate MGST1's tissue-specific distribution, subcellular localization, and regulatory mechanisms. Researchers also utilize these antibodies to explore MGST1's interactions with signaling pathways, such as NF-κB and Nrf2. which are linked to inflammation and antioxidant responses. Species specificity (human, mouse, rat) and validation in knockout models are critical considerations for experimental accuracy.