Recombinant human Glutathione Reductase protein

Glutathione reductase, also known as GSR, is a member of the class-I pyridine nucleotide-disulfide oxidoreductase family. This enzyme is a homodimeric flavoprotein and plays a role in maintaining glutathione (GSH) in its reduced form by catalyzing the reduction of glutathione disulfide (GSSG) : GSSG + NADPH + H+ ->2GSH + NADP+. In most eukaryotic cells, GSR maintains the ratio of [GSH] / [GSSG], and participates in several vital functions such as the detoxification of reactive oxygen species as well as protein and DNA biosynthesis. Recombinant human GSR protein, fused to His-tag at N-terminus, was expressed in E. coli and purified by using conventional chromatography techniques.

Product Specifications

Specifications

Specific activity is > 45 units/mg. The unit definition for glutathione reductase activity may be expressed in terms of the oxidation of NADPH or the reduction of GSSG since their molar ratio is 1:1. One unit of glutathione reductase oxidizes 1 umol of NADPH per minute at 37C, pH 7.5.

Product Name Alternative

Glutathione reductase, GLuR, GRD1

Expression System

E.coli

Antigen Species

Human

Tag

His-Tag

Applications

Enzyme Activity, SDS-PAGE

Concentration

1 mg/mL (determined by Bradford assay)

Purity

> 95% by SDS-PAGE

Bioactivity

Specific activity is > 45unit/mg. The unit definition for glutathione reductase activity may be expressed in terms of the oxidation of NADPH or the reduction of GSSG since their molar ratio is 1:1. One unit of glutathione reductase oxidizes 1 umol of NADPH per minute at 37C, pH 7.5.

Molecular Weight

54.3 kDa (504aa) confirmed by MALDI-TOF

Additionnal Information

Glutathione Reductase, Glutathione reductase, GLuR, GRD1, ATGP1318-10 µg, ATGP1318-20 µg, ATGP1318-50 µg, ATGP1318-100 µg, ATGP1318-250 µg, ATGP1318-500 µg, ATGP1318-1 mg, ATGP1318-10, ATGP1318-20, ATGP1318-50, ATGP1318-100, ATGP1318-250, ATGP1318-500, ATGP1318-1

References & Citations

Stoll V S., et al. (1997) Biochemistry. 36:6437-6447.; ; Karplus P A., et al. (1987) J Mol biol. 195:701-729.

Storage Conditions

Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.

Formulation

Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 1mM DTT, 10% glycerol, 0.1M NaCl

Scientific Category

Redox Proteins

NCBI Accession Number

NP_000628

Uniprot Accession Number

P00390

Species

Human

AA Sequence

MGSSHHHHHH SSGLVPRGSH MGSMAMACRQ EPQPQGPPPA AGAVASYDYL VIGGGSGGLA SARRAAELGA RAAVVESHKL GGTCVNVGCV PKKVMWNTAV HSEFMHDHAD YGFPSCEGKF NWRVIKEKRD AYVSRLNAIY QNNLTKSHIE IIRGHAAFTS DPKPTIEVSG KKYTAPHILI ATGGMPSTPH ESQIPGASLG ITSDGFFQLE ELPGRSVIVG AGYIAVEMAG ILSALGSKTS LMIRHDKVLR SFDSMISTNC TEELENAGVE VLKFSQVKEV KKTLSGLEVS MVTAVPGRLP VMTMIPDVDC LLWAIGRVPN TKDLSLNKLG IQTDDKGHII VDEFQNTNVK GIYAVGDVCG KALLTPVAIA AGRKLAHRLF EYKEDSKLDY NNIPTVVFSH PPIGTVGLTE DEAIHKYGIE NVKTYSTSFT PMYHAVTKRK TKCVMKMVCA NKEEKVVGIH MQGLGCDEML QGFAVAVKMG ATKADFDNTV AIHPTSSEEL VTLR