Date published: 2026-2-14

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SULT2A5 Inhibitors

Chemical inhibitors of SULT2A5 include a variety of compounds predominantly found in natural sources, such as plants. These inhibitors, including flavonoids like Quercetin, Chrysin, Kaempferol, Myricetin, and Apigenin, polyphenols such as Chlorogenic acid and Ellagic acid, the stilbenoid Resveratrol, and the isoflavone Genistein, can impede the enzymatic activity of SULT2A5 through several mechanisms. Quercetin and Chrysin, for instance, can bind to the active site of SULT2A5, which is the region where the enzyme's normal substrates would bind. By occupying this space, these compounds prevent the enzyme from catalyzing the sulfonation reaction, a process whereby the enzyme transfers a sulfo group to its substrates. Similarly, Kaempferol and Myricetin can inhibit the activity of SULT2A5 by competing with physiological substrates for access to the active site, effectively blocking the reaction pathway.

Other chemical inhibitors like Chlorogenic acid and Ellagic acid may alter the conformation of SULT2A5, which can disrupt the enzyme's ability to function properly. Resveratrol operates by a similar competitive mechanism, docking at the enzyme's active site and thus preventing substrate binding. Genistein can also bind to this crucial functional domain of SULT2A5, inhibiting the sulfonation of the enzyme's substrates. In the same vein, Curcumin is believed to bind to the active site, which would impede the enzyme's normal functioning. The compound 3,3'-Diindolylmethane can interfere with SULT2A5's activity by inhibiting the transfer of the sulfo group, although the exact mechanism may vary from the direct active site competition seen with other inhibitors. Lastly, Epigallocatechin gallate (EGCG) demonstrates an inhibitory effect by directly binding to SULT2A5, which could interfere with its sulfonation activity, demonstrating a broad spectrum of interactions that different chemical structures can have with this sulfotransferase enzyme.

SEE ALSO...

Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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)

As a flavonoid, Quercetin can inhibit sulfotransferase activity, and thus, it can inhibit the sulfoconjugation function of SULT2A5 by competing with the sulfuryl donor substrate, which is pivotal for the protein's enzymatic activity.

Chlorogenic Acid

327-97-9sc-204683
sc-204683A
500 mg
1 g
$47.00
$69.00
1
(1)

Chlorogenic acid, as a polyphenol, has been shown to inhibit sulfotransferases. It may inhibit SULT2A5 by binding to the active site or altering the enzyme's conformation, thereby preventing the transfer of the sulfo group from the donor to acceptors.

3,3′-Diindolylmethane

1968-05-4sc-204624
sc-204624A
sc-204624B
sc-204624C
sc-204624D
sc-204624E
100 mg
500 mg
5 g
10 g
50 g
1 g
$37.00
$65.00
$89.00
$421.00
$681.00
$66.00
8
(1)

This compound, a derivative of indole-3-carbinol from cruciferous vegetables, can inhibit sulfotransferase enzymes, thus it can inhibit SULT2A5 by interfering with the enzyme's sulfuryl transfer activity.

Chrysin

480-40-0sc-204686
1 g
$38.00
13
(1)

Chrysin is a flavone that can inhibit various sulfotransferases. It can inhibit SULT2A5 by competing with the physiological substrates for the active site, which can block the sulfonation reaction catalyzed by the enzyme.

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 can inhibit sulfotransferase enzymes, which suggests it can inhibit SULT2A5 by binding to its active site and preventing the enzyme from catalyzing the sulfonation of its substrates.

Resveratrol

501-36-0sc-200808
sc-200808A
sc-200808B
100 mg
500 mg
5 g
$80.00
$220.00
$460.00
64
(2)

As a stilbenoid, Resveratrol can inhibit the function of sulfotransferases, including SULT2A5, by competing with the natural substrates for binding to the active site, thus inhibiting the sulfonation reaction.

Ellagic Acid, Dihydrate

476-66-4sc-202598
sc-202598A
sc-202598B
sc-202598C
500 mg
5 g
25 g
100 g
$58.00
$95.00
$245.00
$727.00
8
(1)

Ellagic acid, a polyphenol, can inhibit the sulfonation activity of sulfotransferases. It can inhibit SULT2A5 by blocking the active site or altering the protein structure, thereby inhibiting its enzymatic activity.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

EGCG, the major catechin in green tea, can inhibit SULT2A5 activity by directly binding to the enzyme and interfering with its normal function of sulfonation of substrates.

Genistein

446-72-0sc-3515
sc-3515A
sc-3515B
sc-3515C
sc-3515D
sc-3515E
sc-3515F
100 mg
500 mg
1 g
5 g
10 g
25 g
100 g
$45.00
$164.00
$200.00
$402.00
$575.00
$981.00
$2031.00
46
(1)

Genistein, an isoflavone, can inhibit sulfotransferase activity. It can functionally inhibit SULT2A5 by occupying the active site, thus preventing the transfer of sulfuryl groups to the enzyme's substrates.

Kaempferol

520-18-3sc-202679
sc-202679A
sc-202679B
25 mg
100 mg
1 g
$99.00
$216.00
$510.00
11
(1)

Kaempferol is a flavonol known to inhibit sulfotransferases. It can inhibit SULT2A5 by binding to the enzyme's active site, obstructing the access of substrates necessary for the sulfonation process.