Thioredoxin Reductase 2 SelCys523Cys (human) (rec.)

Product Description: The mammalian thioredoxin reductases (TrxRs) are a family of selenocysteine-containing pyridine nucleotide-disulfide oxido-reductases. All the mammalian TrxRs are homologous to glutathione reductase with respect to primary structure including the conserved redox catalytic site (-Cys-Val-Asn-Val-Gly-Cys-) but distinctively with a C-terminal extension containing a catalytically active penultimate selenocysteine (SeCys) residue in the conserved sequence(-Gly-Cys-SeCys-Gly). TrxR is homodimeric protein in which each monomer includes an FAD prosthetic group, a NADPH binding site and a redox catalytic site. Electrons are transferred from NADPH via FAD and the active-site disulfide to C-terminal SeCys-containing redox center, which then reduces the substrate like thioredoxin. The members of TrxR family are 55 – 58 kilodalton in molecular size and composed of three isoforms including cytosolic TrxR1, mitochondrial TrxR2, and TrxR3, known as Trx and GSSG reductase (TGR). TrxR plays a key role in protection of cells against oxidative stress and redox-regulatory mechanism of transcription factors and various biological phenomena (1).

Alternate Names/Synonyms: SelZ; TXNRD2; TR-beta; KIAA1652; EC=1.8.1.9; Selenoprotein Z; Thioredoxin Reductase TR3; Thioredoxin Reductase 2, Mitochondrial

Product type: Protein

Source / Host: E. coli

Species Crossreactivity: Human

Purity: >95% (SDS-PAGE)

Formulation: Liquid in 20mM HEPES, pH 7.4, 10% Glycerol.

Handling Advice: Avoid freeze/thaw cycles.

Short Term Storage: -20°C

Long Term Storage: -80°C

Shipping: DRY ICE

Use & Stability:

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