Date published: 2025-12-18

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KLKb2 Activators

KLKb2 Activators are chemical compounds that, through various mechanisms, enhance the functional activity of KLKb2, a serine protease involved in the kallikrein-kinin system and coagulation pathways. For instance, Benzamidine, by inhibiting serine proteases that compete with KLKb2, enhances its proteolytic activity, ensuring that more substrate is available for KLKb2. Argatroban and D-Phe-Pro-Arg chloromethyl ketone (PPACK) serve as thrombin inhibitors, which indirectly increase KLKb2 activity by reducing thrombin's activation of protease-activated receptors, thereby decreasing competition for KLKb2 substrates. Similarly, Aprotinin, Nafamostat, and Gabexate are serine protease inhibitors that preserve KLKb2 activity by preventing degradation of KLKb2 or its substrates by other proteases. Corn trypsin inhibitor (CTI) modulates the contact pathway of blood coagulation, which can lead to an upsurge in KLKb2 activity by influencing the kallikrein-kinin system, while C1-Inhibitor regulates the complement system and contact system, potentially enhancing KLKb2 activity by limiting the activity of other proteases within these pathways.

KLKb2 Activators are a select group of chemical compounds that indirectly but specifically enhance the functional activity of the serine protease KLKb2. Within the intricate network of the coagulation and kallikrein-kinin systems, these activators work by inhibiting competing enzymes and modulating related pathways to favor KLKb2's proteolytic role. Benzamidine, for example, by selectively inhibiting other serine proteases, ensures that substrates are readily available for KLKb2, thereby enhancing its activity. Argatroban and D-Phe-Pro-Arg chloromethyl ketone (PPACK) reduce the activity of thrombin, which lessens PAR pathway signaling and, as a result, decreases substrate competition for KLKb2. Aprotinin, Nafamostat, and Gabexate, all serine protease inhibitors, protect KLKb2 from proteolytic degradation and prevent the depletion of its substrates, thus indirectly boosting its activity. Corn trypsin inhibitor (CTI) and C1-Inhibitor specifically target pathways that, when modulated, result in an upregulation of KLKb2 activity by altering the balance within the coagulation and complement systems.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Benzamidine

618-39-3sc-233933
10 g
$286.00
1
(0)

Competitive inhibitor of serine proteases; its use in low concentrations could enhance the functional activity of KLKb2 by preventing the binding of more potent endogenous inhibitors, thus indirectly increasing the availability of KLKb2 for its enzymatic function.

Aprotinin

9087-70-1sc-3595
sc-3595A
sc-3595B
10 mg
100 mg
1 g
$110.00
$400.00
$1615.00
51
(2)

A serine protease inhibitor that in low concentrations may be used to selectively block competing serine proteases, which might result in a relative increase of KLKb2 activity due to reduced proteolytic competition.

Phenylmethylsulfonyl Fluoride

329-98-6sc-3597
sc-3597A
1 g
100 g
$50.00
$683.00
92
(1)

Irreversible inhibitor of serine proteases; at carefully controlled low concentrations could potentially increase the activity of KLKb2 by selectively inhibiting other serine proteases that would otherwise degrade or inactivate KLKb2.

α-Iodoacetamide

144-48-9sc-203320
25 g
$250.00
1
(1)

Alkylating agent known to modify cysteine residues; when used in low concentrations, it could protect KLKb2 from unwanted cysteine modification, preserving its proteolytic activity.

L-Lysine

56-87-1sc-207804
sc-207804A
sc-207804B
25 g
100 g
1 kg
$93.00
$258.00
$519.00
(1)

Chloromethyl ketone that irreversibly inhibits trypsin-like serine proteases; used judiciously, it might enhance KLKb2 activity by reducing competition from other trypsin-like proteases.

Bleomycin Sulfate

9041-93-4sc-200134
sc-200134A
sc-200134B
sc-200134C
10 mg
50 mg
100 mg
500 mg
$206.00
$612.00
$1020.00
$2856.00
38
(3)

Serpin family inhibitor that targets chymotrypsin-like proteases; could indirectly enhance the activity of KLKb2 by shifting the balance of protease activity towards trypsin-like proteases, such as KLKb2, by inhibiting its competitors.

Leupeptin hemisulfate

103476-89-7sc-295358
sc-295358A
sc-295358D
sc-295358E
sc-295358B
sc-295358C
5 mg
25 mg
50 mg
100 mg
500 mg
10 mg
$72.00
$145.00
$265.00
$489.00
$1399.00
$99.00
19
(3)

Inhibitor of various proteases, including serine proteases; low-dose leupeptin may reduce the activity of proteases that degrade KLKb2, leading to an increase in the active form of KLKb2 in the local environment.

E-64

66701-25-5sc-201276
sc-201276A
sc-201276B
5 mg
25 mg
250 mg
$275.00
$928.00
$1543.00
14
(0)

Irreversible cysteine protease inhibitor; while it does not directly activate KLKb2, it could lead to an accumulation of substrates that are preferentially cleaved by KLKb2, effectively enhancing its functional role in proteolysis.