CST, 52455S, GPX4 Antibody

Polyclonal Antibody for studying GPX4. Validated for Western Blotting. Highly specific and rigorously validated in-house, GPX4 Antibody (CST #52455) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting Specificity / Sensitivity GPX4 Antibody recognizes endogenous levels of total GPX4 protein. Species Reactivity: Human, Mouse, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human GPX4 protein. Antibodies are purified by peptide affinity chromatography. Background The selenoprotein glutathione peroxidase 4 (GPX4) is a master regulator of ferroptosis, a form of programmed cell death induced by iron-dependent lipid peroxidation (1,2). GPX4 converts lipid hydroperoxides to non-toxic lipid alcohols, therefore preventing ferroptosis (2). Research studies show that selenium enhances GPX4 expression and inhibits ferroptotic death to protect neurons (3). In addition, some therapy-resistant cancer cells depend on GPX4 to survive. Loss of GPX4 leads to ferroptosis and thus prevents tumor relapse in mice (4). Furthermore, redox homeostasis mediated by GPX4 is essential for activation of the cytosolic DNA-sensing cGAS-STING pathway and initiation of the subsequent innate immune response (5). Alternate Names epididymis secretory sperm binding protein; Glutathione peroxidase 4; glutathione peroxidase 4 (phospholipid hydroperoxidase); GPx-4; GPX4; GSHPx-4; MCSP; PHGPx; phospholipid hydroperoxidase; Phospholipid hydroperoxide glutathione peroxidase; Phospholipid hydroperoxide glutathione peroxidase, mitochondrial; selenoprotein GPX4; SMDS; snGPx; snPHGPx; sperm nucleus glutathione peroxidase Specification REACTIVITY: H M Mk SENSITIVITY: Endogenous MW (kDa): 20, 22 SOURCE: Rabbit