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Human Thioredoxin / TXN / SASP Protein

DatasheetSpecific ReferencesReviewsRelated ProductsProtocols
Human TXN Protein Product Information
Synonym:TXN, RP11-427L11.1, DKFZp686B1993, MGC61975, TRX, TRX1
Protein Construction:A DNA sequence encoding the C-terminal segment of human TXN (P10599) (Met 1-Val 105) was expressed and purified.
Expressed Host:E. coli
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human TXN Protein QC Testing
Purity:> 97 % as determined by SDS-PAGE
Bio-Activity:1. Measured by its ability to catalyze the reduction of insulin. The specific activity is 5-9 pmoles/min/μg.
2. Measured by its ability to catalyze the reduction of insulin. The reaction leads toprecipitation, which can be measured by absorbance at 650 nm. The specific activity is 5-10 A650/min/mg.
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met
Molecule Mass:The recombinant human TXN comprises 105 amino acids and predicts a molecular mass of 11.7 kDa. It migrates ass an approximately 14 kDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, pH 7.5
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human TXN Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human TXN Protein SDS-PAGE
Human Thioredoxin / TXN / SASP Protein SDS-PAGE
Other TXN Recombinant Protein Products
Thioredoxin/TXN/SASP Background

Thioredoxin, also known as ATL-derived factor, Surface-associated sulphydryl protein, SASP and TXN, is a nucleus, cytoplasm and secreted protein which belongs to the thioredoxin family. Thioredoxins are proteins that act as antioxidants by facilitating the reduction of other proteins by cysteine thiol-disulfide exchange. Thioredoxins are found in nearly all known organisms and are essential for life in mammals. Thioredoxin / TXN participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. Thioredoxin / TXN plays a role in the reversible S-nitrosylation of cysteine residues in target proteins, and thereby contributes to the response to intracellular nitric oxide. Thioredoxin / TXN nitrosylates the active site Cys of CASP3 in response to nitric oxide (NO), and thereby inhibits caspase-3 activity. Thioredoxin / TXN induces the FOS/JUN AP-1 DNA-binding activity in ionizing radiation (IR) cells through its oxidation/reduction status and stimulates AP-1 transcriptional activity.

Human Thioredoxin/TXN/SASP References
  • Holmgren A , et al.,1989, J Biol Chem 264 (24): 13963-6.
  • Nordberg J, et al., 2001, Free Radic Biol Med31 (11): 1287-312.
  • Mustacich D, et al., 2000, Biochem J 346 (Pt 1): 1-8. 
  • Mitchell D.A., et al., 2005, Nat. Chem. Biol. 1:154-158.
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    Catalog: 10384-HNAE-200
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