

| Catalog No. | HW551022 |
|---|---|
| Description |
Recombinant Human GPX4/PHGPx Protein, N-GST (HW551022) expressed in E. coli, spanning Met129-Phe197. Purity: >90% by SDS-PAGE.
Highlights
|
| Expression system | E. coli |
| Accession | P36969 |
| Protein length | Met129-Phe197 |
| Applications | ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress |
| Species | Homo sapiens (Human) |
| Nature | Recombinant |
| Endotoxin level | Please contact with the lab for this information. |
| Purity | >90% as determined by SDS-PAGE. |
| Predicted molecular weight | 34.85 kDa |
| Form | Lyophilized |
| Storage buffer | Lyophilized from a solution in PBS pH 7.4, 0.02% NLS, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA. |
| Reconstitution | Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet. RECONSTITUTION PROTOCOL 1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature. 2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial. 3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service. 4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down. 5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using. 6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended. |
| Shipping | In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise. |
| Stability and Storage | Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt. |
| Alternate Names | PHGPx, Glutathione peroxidase 4, GPX4, GSHPx-4, GPx-4, Phospholipid hydroperoxide glutathione peroxidase |
| Background | Phospholipid hydroperoxide glutathione peroxidase GPX4 (PHGPx) is a ~22 kDa protein. Essential antioxidant peroxidase that directly reduces phospholipid hydroperoxide even if they are incorporated in membranes and lipoproteins. Can also reduce cholesterol hydroperoxide and thymine hydroperoxide. Plays a key role in protecting cells from oxidative damage by preventing membrane lipid peroxidation. Required to prevent cells from ferroptosis, a non-apoptotic cell death resulting from an iron-dependent accumulation of lipid reactive oxygen species. The presence of selenocysteine (Sec) versus Cys at the active site is essential for life: it provides resistance to overoxidation and prevents cells against ferroptosis. 1. Zheng, P. et al. (2025) Nature chemical biology 21, 1420-1432. PMID: 40281343 2. Yang, WS. et al. (2014) Cell 156, 317-331. PMID: 24439385 3. Sutherland, M. et al. (2001) The Biochemical journal 353, 91-100. PMID: 11115402 4. Schwarz, M. et al. (2023) Redox biology 59, 102593. PMID: 36608588 5. Scheerer, P. et al. (2007) Biochemistry 46, 9041-9. PMID: 17630701 |
| Note | For research use only. |

SDS-PAGE for Recombinant Human GPX4/PHGPx Protein, N-GST



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