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折扣/货期| 货号：26906 | 规格：50 µg | 目录价：￥8414 |
产品详情
产品名称:
GPX4 (human, recombinant; His-tagged)
别名:
Glutathione Peroxidase 4|PHGPx|Phospholipid Hydroperoxide Glutathione Peroxidase
产品描述:
Glutathione peroxidase 4 (GPX4) is a selenocysteine-containing glutathione peroxidase that is encoded by the GPX4 gene in humans and protects cellular membranes from oxidative damage.{48903,48904} It is a monomeric protein consisting of a thioredoxin motif and a selenocysteine-glutamine-tryptophan catalytic triad that reduces lipid hydroperoxides, including phospholipid, polyunsaturated lipid, and sterol hydroperoxides, to non-toxic lipid alcohols. During this process, the active site selenocysteine becomes oxidized and must subsequently be replenished by the reducing substrate glutathione (GSH).{48904} There are three isoforms of GPX4, mitochondrial mGPX4, cytosolic cGPX4, and nuclear nGPX4/snGPX4, that are expressed in all tissue types in rats, with the highest mRNA levels observed in testes.{48903,48904,48906} GPX4 is a key regulator of ferroptosis that inhibits ferroptotic cell death by preventing iron-dependent accumulation of toxic lipid reactive oxygen species.{48904} Mutations in GPX4 have been found in patients with Sedaghatian-type spondylometaphyseal dysplasia (SSMD), and silencing of Gpx4 in mice is embryonic lethal.{48905,48904} Cayman's GPX4 (human, recombinant; His-tagged) protein has a selenocysteine incorporated in the active site that has been confirmed by mass spectrometry. It can be used for Western blot, ELISA, and enzymatic assays.
保存温度:
-80
运输温度:
-80
产品形式:
50 mM potassium phosphate buffer, pH 7.6, with 0.1 mM DTT and 5% glycerol
有效期:
365
纯度:
≥65% estimated by SDS-PAGE
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