级别和纯度: 无载体?无载体(Carrier Free)—— 不含添加的载体蛋白/稳定剂。当载体(如 BSA)会干扰偶联或敏感检测时使用。His标签?组氨酸(His) 标签级 —— 带有 His 标签的重组蛋白,供亲和纯化/检测。用于纯化、固定或检测带标签蛋白。≥90%(SDS-PAGE)expressed in E. coli; 见COA
无载体,His标签,≥90%(SDS-PAGE),expressed in E. coli; 见COA
生化机理
Glutathione peroxidase 1 (GPX1) is a member of the glutathione peroxidase family, consisting of 8 identified glutathione peroxidases (Gpx1-8) in humans. Glutathione peroxidase serves in the detoxification of hydrogen peroxide, and is one of the most vital antioxidant enzymes in humans. The GPX1 is a component of the enzymatic antioxidant defense, preventing oxidative damage to DNA, proteins and lipids by detoxifying hydrogen and lipid peroxides which may contribute to prostate cancer development. GPX1 is one of only a small number of proteins known in higher vertebrates to contain selenocysteine, which occurs at the active site of glutathione peroxidase and is coded by the nonsense (stop) codon TGA. Furthermore, the GPX1 protein is characterized in a polyalanine sequence polymorphism in the N-terminal region, which includes 3 alleles with 5, 6 or 7 alanine (ALA) repeats in this sequence. The allele with 5 ALA repeats is significantly linked to breast cancer risk.
Post-translational: During periods of oxidative stress, Sec-49 may react with a superoxide radical, irreversibly lose hydroselenide and be converted to dehydroalanine.
Recombinant Human Glutathione Peroxidase 1/GPX1 Protein (rp192119) - SDS-PAGE
3 μg/lane of Recombinant Human Glutathione Peroxidase 1/GPX1 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 24.8 kDa under reducing conditions and 18.1-25.0 & 38.4-45.8 kDa under non-reducing conditions.