Date published: 2026-6-23

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TrxR2 Inhibitors

TrxR2 inhibitors are a diverse group of chemicals that target the enzyme either by directly interacting with its active site or by modulating associated redox processes. The enzyme's unique selenocysteine-containing active site is a common target for direct inhibitors. Compounds like Auranofin and Ethaselen exploit this by binding irreversibly to the selenocysteine residue, effectively blocking the enzyme's activity. The action of these inhibitors leads to the disruption of the TrxR2-mediated reduction of thioredoxin, which is crucial for maintaining the cellular redox state. This interference has implications in various pathological conditions, including cancer, where TrxR2's role in cell survival and proliferation is critical. Indirect inhibitors, on the other hand, do not bind directly to the active site but influence the enzyme's activity or expression through other pathways. Curcumin, for instance, affects TrxR2 by modulating redox-sensitive signaling pathways, while compounds like Buthionine Sulfoximine act by altering the cellular redox environment, namely through glutathione depletion. These inhibitors often work by increasing oxidative stress within cells, thereby impairing the function of TrxR2.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Auranofin

34031-32-8sc-202476
sc-202476A
sc-202476B
25 mg
100 mg
2 g
$153.00
$214.00
$4000.00
39
(2)

Auranofin is a gold(I)-containing compound that irreversibly inhibits TrxR2 by binding to the selenocysteine residue in the active site, disrupting its redox function.

Cisplatin

15663-27-1sc-200896
sc-200896A
100 mg
500 mg
$138.00
$380.00
101
(4)

Cisplatin inhibits TrxR2 indirectly through its reactivity with DNA, leading to increased oxidative stress and impaired redox homeostasis.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

Curcumin, a polyphenol from turmeric, indirectly inhibits TrxR2 by modulating redox-sensitive signaling pathways, altering the enzyme's activity and expression.

Gadolinium

7440-54-2sc-250038
10 g
$89.00
(0)

This texaphyrin compound selectively targets TrxR2, leading to the disruption of cellular redox balance and enhancement of oxidative stress.

Ebselen

60940-34-3sc-200740B
sc-200740
sc-200740A
1 mg
25 mg
100 mg
$33.00
$136.00
$458.00
5
(1)

Ebselen is a selenium-containing compound that mimics glutathione peroxidase activity and indirectly inhibits TrxR2 by modulating glutathione levels and redox status.

PX 12

141400-58-0sc-358518
sc-358518A
10 mg
50 mg
$133.00
$505.00
9
(1)

PX-12, an irreversible inhibitor of TrxR2, covalently modifies the enzyme's active site, leading to the suppression of its activity and disruption of cellular redox balance.

8-Hydroxy-5-nitroquinoline

4008-48-4sc-233708
sc-233708A
sc-233708B
5 g
100 g
500 g
$50.00
$90.00
$334.00
1
(1)

Nitroxoline, an antibiotic, inhibits TrxR2 by chelating metal ions essential for the enzyme's activity, thus impairing its function.

Triapine

200933-27-3sc-475303
10 mg
$300.00
(0)

Triapine, a thiosemicarbazone derivative, targets TrxR2 by chelating iron, disrupting the enzyme's redox cycle and impairing its function.

L-Buthionine sulfoximine

83730-53-4sc-200824
sc-200824A
sc-200824B
sc-200824C
500 mg
1 g
5 g
10 g
$286.00
$442.00
$1532.00
$2975.00
26
(1)

This compound indirectly inhibits TrxR2 by depleting glutathione levels, leading to increased oxidative stress and impaired redox balance.