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AB286028

Recombinant Thioredoxin / TRX protein (Active)

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Recombinant Thioredoxin / TRX protein (Active) is a Human Full Length protein, expressed in Escherichia coli, with >95%, suitable for SDS-PAGE, FuncS.

View Alternative Names

TRDX, TRX, TRX1, TXN, Thioredoxin, Trx, ATL-derived factor, Surface-associated sulphydryl protein, ADF, SASP

2 Images
Functional Studies - Recombinant Thioredoxin / TRX protein (Active) (AB286028)
  • FuncS

Supplier Data

Functional Studies - Recombinant Thioredoxin / TRX protein (Active) (AB286028)

Enzymatic activity of Trx : Trx reduction of Di-FITC-GSSG to FITC-GSH assay was performed in 26.5 mM potassium phosphate buffer, 1.5 mM EDTA, 1200 μU TrxR, and 610 μM NADPH. The reaction mix was incubated for 20 minutes at room temperature, which allows TrxR to reduce into Trx. Then Di-FITC-GSSG was added to the final concentration of 11.6 μM. FITC fluorescence was measured at 490/525 nm, which resulted in an activity curve with different amounts of Trx.

SDS-PAGE - Recombinant Thioredoxin / TRX protein (Active) (AB286028)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Thioredoxin / TRX protein (Active) (AB286028)

SDS-PAGE (4-20%) of Recombinant TRX : Recombinant protein loaded under reducing conditions and stained with Coomassie Blue. The protein shows a predicted MW of ~ 14.5 kDa

Key facts

Purity

>95% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE, FuncS

applications

Biologically active

Yes

Biological activity

This enzyme has activity ≥20 mU/mg based on its ability to reduce FITC-labeled oxidized glutathione (FITC-GSSG-FITC) to FITC-labeled reduced glutathione (FITC-GSH).

One unit is the amount of enzyme that will generate 1.0 μmole of FITCGSH per minute at pH 7.3 at 25°C.

Accession

P10599

Animal free

No

Carrier free

Yes

Species

Human

Reconstitution

Reconstitute in water

Storage buffer

Constituents: 0.86% Sodium chloride, 0.6% Tris HCl

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "FuncS": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Previously known as Thioredoxin isoform 1 (Trx), Active, Human Recombinant (P1039).

Sequence info

[{"sequence":"","proteinLength":"Full Length","predictedMolecularWeight":"14.5 kDa","actualMolecularWeight":null,"aminoAcidEnd":0,"aminoAcidStart":0,"nature":"Recombinant","expressionSystem":null,"accessionNumber":"P10599","tags":[{"tag":"His","terminus":"N-Terminus"}]}]

Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
True

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Thioredoxin (TRX) also known as TXN or Trx is a small redox protein with a molecular mass of approximately 12 kDa. It acts as an oxidoreductase enzyme facilitating the reduction of other proteins by cysteine thiol-disulfide exchange. Thioredoxin is ubiquitously expressed across various tissues indicating its function in a broad range of cellular activities. The protein comprises an active site with a conserved Cys-Gly-Pro-Cys sequence critical for its reducing activity.
Biological function summary

Thioredoxin influences cellular redox homeostasis and plays direct roles in regulating cell growth and apoptosis. It participates as a major reductant in cells influencing transcription factors and enzymatic activities that depend on thiol-disulfide exchanges. Thioredoxin can interact with other components like thioredoxin reductase and NADPH to form the thioredoxin system a powerful antioxidant defense mechanism. Diseases typically arise from abnormal regulation of this system highlighting its influence on cellular survival and proliferation.

Pathways

Thioredoxin integrates into significant signaling and metabolic processes. It is an important player in the cellular response to oxidative stress and participates in signaling pathways such as the MAPK and apoptosis pathways. In these pathways thioredoxin reduces the oxidative stress transcription factor AP-1 influencing cell fate decisions. Its interaction with thioredoxin-interacting protein (TXNIP) further modulates cellular responses to oxidative environments.

Altered thioredoxin activity associates with cancer and neurodegenerative diseases. Its overexpression links to tumor progression where it promotes survival and resistance to apoptosis. Additionally in the context of neurodegenerative disorders thioredoxin’s interaction with amyloid-beta peptides implicates it in Alzheimer’s disease by mitigating oxidative stress damage. Through these conditions its role as a protector against oxidative stress remains pivotal.

Specifications

Form

Lyophilized

General info

Function

Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions (PubMed : 17182577, PubMed : 19032234, PubMed : 2176490). Plays a role in the reversible S-nitrosylation of cysteine residues in target proteins, and thereby contributes to the response to intracellular nitric oxide. Nitrosylates the active site Cys of CASP3 in response to nitric oxide (NO), and thereby inhibits caspase-3 activity (PubMed : 16408020, PubMed : 17606900). 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 (PubMed : 11118054, PubMed : 9108029).. ADF augments the expression of the interleukin-2 receptor TAC (IL2R/P55).

Sequence similarities

Belongs to the thioredoxin family.

Post-translational modifications

In the fully reduced protein, both Cys-69 and Cys-73 are nitrosylated in response to nitric oxide (NO). When two disulfide bonds are present in the protein, only Cys-73 is nitrosylated. Cys-73 can serve as donor for nitrosylation of target proteins.. In case of infection, ubiquitinated by S.typhimurium protein slrP, leading to its degradation.

Subcellular localisation

Nucleus

Product protocols

Target data

Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions (PubMed : 17182577, PubMed : 19032234, PubMed : 2176490). Plays a role in the reversible S-nitrosylation of cysteine residues in target proteins, and thereby contributes to the response to intracellular nitric oxide. Nitrosylates the active site Cys of CASP3 in response to nitric oxide (NO), and thereby inhibits caspase-3 activity (PubMed : 16408020, PubMed : 17606900). 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 (PubMed : 11118054, PubMed : 9108029).. ADF augments the expression of the interleukin-2 receptor TAC (IL2R/P55).
See full target information TXN

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