Thioredoxin Reductase 1 SelCys498Cys (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: TR; TXNRD1; GRIM12; GRIM-12; EC=1.8.1.9; Thioredoxin Reductase TR1; KM-102-derived Reductase-like Factor; Thioredoxin Reductase 1; Cytoplasmic; Gene Associated with Retinoic and IFN-induced Mortality 12 Protein

Product type: Protein

Source / Host: E. coli

Species Crossreactivity: Human

Purity: >95% (SDS-PAGE)

Formulation: Lyophilized from 20mM HEPES, pH 7.0, 1mM EDTA.

Handling Advice: Avoid freeze/thaw cycles.

Short Term Storage: +4°C

Long Term Storage: -20°C

Shipping: BLUE ICE

Use & Stability: After reconstitution, store at -80°C.

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