Date published: 2026-5-17

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Hep C NS3 Activators

The class of HCV NS3 Activators comprises a variety of phytochemicals, including flavonoids, stilbenoids, and isoflavones. These compounds can indirectly influence the function of HCV NS3 by inhibiting one of its activities (protease or helicase), which can lead to an upregulation of the other activity. For instance, compounds such as thymoquinone, curcumin, genistein, resveratrol, silymarin, daidzein, myricetin, and apigenin inhibit the NS3 protease activity, which can result in an increase in NS3 helicase activity.

On the other hand, compounds such as EGCG, quercetin, kaempferol, naringenin inhibit the NS3 helicase activity, leading to an indirect stimulation of NS3 protease activity. Despite the potential indirect activation, the overall effect of these compounds is to inhibit the replication of HCV, as the inhibition of either NS3 protease or helicase activity can disrupt the viral replication process. The counterbalancing activities of the NS3 protein and the variety of natural compounds that can influence these activities highlight the complexity of the HCV replication process and the potential for chemicalintervention in disrupting this process. The chemical structures of HCV NS3 Activators are diverse, but they all share the common property of being capable of interacting with the NS3 protein. They work by binding to the NS3 protein and disrupting its normal function, which can lead to a change in the balance of protease and helicase activities. These interactions can be highly specific, as the binding of these chemicals to the NS3 protein can depend on the precise shape and chemical properties of both the protein and the chemical compound.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Thymoquinone

490-91-5sc-215986
sc-215986A
1 g
5 g
$47.00
$133.00
21
(2)

A phytochemical compound found in the plant Nigella sativa. Thymoquinone has been shown to inhibit the HCV NS3 protease activity, which can result in an increase in its helicase activity.

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)

A bioactive compound from turmeric. Curcumin has been demonstrated to inhibit HCV replication by suppressing NS3/4A protease activity, which can indirectly upregulate NS3 helicase 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)

The most abundant catechin in tea. EGCG can inhibit the replication of HCV by targeting NS3 helicase, which can lead to an increase in NS3 protease activity.

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)

A phytoestrogen isoflavone found in soybeans. Genistein is known to inhibit the viral replication of HCV by suppressing NS3 protease activity, which can indirectly enhance the activity of NS3 helicase.

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)

A flavonoid found in many plants and foods. Quercetin has been shown to inhibit the replication of HCV by targeting the NS3 helicase, which can indirectly stimulate NS3 protease activity.

Resveratrol

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

A stilbenoid, a type of natural phenol. Resveratrol can inhibit HCV replication by suppressing NS3 protease activity, which can indirectly stimulate NS3 helicase activity.

Silymarin group, mixture of isomers

65666-07-1sc-301806
50 g
$325.00
(0)

A mixture of flavonolignans from the milk thistle plant. Silymarin has been shown to inhibit HCV replication by targeting NS3 protease, which can potentially promote NS3 helicase activity.