Date published: 2026-4-1

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SULT2A4 Inhibitors

SULT2A4 inhibitors are a class of chemical compounds that specifically target and inhibit the activity of SULT2A4, a member of the sulfotransferase (SULT) enzyme family. Sulfotransferases are responsible for transferring a sulfate group from the donor molecule 3'-phosphoadenosine-5'-phosphosulfate (PAPS) to hydroxyl or amino groups of various substrates, including hormones, steroids, bile acids, and xenobiotics. SULT2A4, in particular, is involved in the sulfation of specific steroids and other lipophilic molecules. This modification typically enhances the solubility of the substrates and facilitates their excretion from the body, while also regulating their biological activity. Sulfation is a critical step in detoxification pathways and in maintaining the balance of bioactive molecules within cells. Inhibitors of SULT2A4 block this enzymatic activity, potentially altering the metabolic processing and bioavailability of its target molecules.

The mechanism of action for SULT2A4 inhibitors typically involves binding to the enzyme's active site, where they compete with either the sulfate donor PAPS or the substrate, preventing the sulfation reaction from occurring. Some inhibitors may function allosterically, altering the enzyme's conformation and reducing its catalytic efficiency without directly competing with substrates. By inhibiting SULT2A4, these compounds can disrupt normal metabolic pathways, affecting the sulfation and regulation of molecules such as hormones and bile acids. This can have downstream effects on processes like steroid metabolism, cellular signaling, and the detoxification of endogenous and exogenous compounds. Research into SULT2A4 inhibitors provides valuable insights into the regulation of sulfation pathways and highlights the critical role of sulfotransferases in controlling the metabolism and function of bioactive molecules within various physiological systems. Understanding how these inhibitors function also contributes to broader knowledge of enzyme-mediated modification processes and their significance in cellular homeostasis.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Propargyl alcohol propoxylate

3973-17-9sc-483878
1 g
$240.00
(0)

Propargyl alcohol propoxylate, a sulfate donor, could act as a direct inhibitor of Sult2a4 by providing an alternative substrate for sulfation. The competitive binding of PAP may divert the enzyme's activity, impacting the sulfation of endogenous substrates.

Pentachlorophenol

87-86-5sc-257975
1 g
$33.00
(1)

Pentachlorophenol, a xenobiotic compound, may act as a direct inhibitor of Sult2a4 by binding to the enzyme and disrupting its catalytic activity. This interference could alter the sulfation of endogenous substrates, influencing cellular processes regulated by Sult2a4.

Quercetin

117-39-5sc-206089
sc-206089A
sc-206089E
sc-206089C
sc-206089D
sc-206089B
100 mg
500 mg
100 g
250 g
1 kg
25 g
$11.00
$17.00
$110.00
$250.00
$936.00
$50.00
33
(2)

Quercetin, a flavonoid, may indirectly inhibit Sult2a4 by modulating cellular signaling pathways associated with sulfation. The impact of quercetin on intracellular processes could lead to altered expression or activity of Sult2a4, affecting the sulfation of specific substrates.

6-Mercaptopurine

50-44-2sc-361087
sc-361087A
50 mg
100 mg
$72.00
$104.00
(0)

6-Mercaptopurine, a purine analog, could potentially act as a direct inhibitor of Sult2a4 by interfering with its catalytic activity. This interference may disrupt the normal sulfation of substrates, influencing cellular responses governed by Sult2a4-mediated sulfation processes.

4-Chlorobenzenesulfonic acid

98-66-8sc-226586
25 g
$28.00
(0)

4-Chlorobenzenesulfonic acid, a sulfonating agent, may directly inhibit Sult2a4 by providing an alternative substrate for sulfation. The competitive binding of this sulfonating agent may divert the enzyme's activity, influencing the sulfation of endogenous substrates.

Daidzein

486-66-8sc-24001
sc-24001A
sc-24001B
100 mg
500 mg
5 g
$28.00
$79.00
$165.00
32
(1)

Daidzein, an isoflavone, may indirectly inhibit Sult2a4 by modulating cellular signaling pathways associated with sulfation. The impact of daidzein on intracellular processes could lead to altered expression or activity of Sult2a4, affecting the sulfation of specific substrates.

Sodium tungstate dihydrate

10213-10-2sc-212949
sc-212949A
25 g
100 g
$50.00
$166.00
(0)

Sodium tungstate, a molybdate analog, may act as a direct inhibitor of Sult2a4 by competing for the enzyme's active site. This interference could disrupt the sulfation of substrates, influencing cellular processes regulated by Sult2a4-mediated sulfation.

Naphthol AS

92-77-3sc-215536A
sc-215536
25 g
500 g
$42.00
$162.00
(1)

Naphthol AS-E phosphate, a competitive inhibitor, may directly hinder Sult2a4 activity by binding to the enzyme's active site. This competitive binding prevents the sulfation of substrates, influencing cellular processes reliant on Sult2a4-mediated sulfation.