Date published: 2026-2-14

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Papain Activators

Papain Activators encompass a diverse set of chemical compounds that facilitate the enhanced functional activity of Papain through stabilization and optimization of its proteolytic environment. Compounds such as Cysteine and Dithiothreitol (DTT) maintain the reduced state of Papain's active site cysteine residue, which is pivotal for its enzymatic action. EDTA serves an important role by chelating metal ions, thus preventing the formation of inhibitory complexes, while Glycerol, L-Cystine, and chaotropic agents like Guanidinium chloride and low concentrations of Urea provide a stabilizing effect on Papain's three-dimensional structure, ensuring enzymatic catalysis proceeds efficiently. These activators work in concert to uphold the conformational integrity and catalytic readiness of Papain.

Further contributing to the activity of Papain are the ionic and pH conditions established by compounds such as Sodium chloride, Potassium phosphate, and Imidazole, which ensure the enzyme operates in an optimal ionic strength and pH range. Magnesium chloride and Calcium chloride are particularly noteworthy, as they stabilize Papain's structure through the provision of divalent cations, which are known to have a beneficial effect on the stability and activity of many proteases. Collectively, these Papain Activators create a conducive chemical environment that promotes the proteolytic function of Papain, allowing it to perform its role in protein digestion without the need for upregulating its expression or direct activation.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

L-Cysteine

52-90-4sc-286072
sc-286072A
sc-286072B
sc-286072C
sc-286072D
25 g
100 g
500 g
5 kg
10 kg
$51.00
$112.00
$449.00
$1151.00
$2178.00
1
(1)

Cysteine contributes to maintaining the active site of Papain by providing a reducing environment, which enhances its proteolytic activity.

Glycerol

56-81-5sc-29095A
sc-29095
100 ml
1 L
$56.00
$153.00
12
(5)

Glycerol acts as a stabilizing agent for Papain, ensuring that the enzyme maintains its three-dimensional structure, which is necessary for its activity.

Niclosamide

50-65-7sc-250564
sc-250564A
sc-250564B
sc-250564C
sc-250564D
sc-250564E
100 mg
1 g
10 g
100 g
1 kg
5 kg
$38.00
$79.00
$188.00
$520.00
$1248.00
$5930.00
8
(1)

At low concentrations, guanidinium chloride can act as a chaotropic agent that stabilizes the active conformation of Papain, thus enhancing its activity.

Urea

57-13-6sc-29114
sc-29114A
sc-29114B
1 kg
2 kg
5 kg
$31.00
$43.00
$78.00
17
(1)

Urea at low concentrations can act as a stabilizing agent for proteins like Papain, potentially increasing its catalytic efficiency.

Sodium Chloride

7647-14-5sc-203274
sc-203274A
sc-203274B
sc-203274C
500 g
2 kg
5 kg
10 kg
$19.00
$30.00
$60.00
$110.00
15
(3)

Moderate concentrations of sodium chloride can enhance the activity of Papain by ensuring proper ionic strength and enzyme stability.

Magnesium chloride

7786-30-3sc-255260C
sc-255260B
sc-255260
sc-255260A
10 g
25 g
100 g
500 g
$28.00
$35.00
$48.00
$125.00
2
(1)

Magnesium ions can serve as cofactors, stabilizing the structure of Papain and thus enhancing its enzymatic activity.

Calcium chloride anhydrous

10043-52-4sc-207392
sc-207392A
100 g
500 g
$66.00
$262.00
1
(1)

Calcium ions can stabilize the overall structure of Papain, leading to an increase in its activity.

Imidazole

288-32-4sc-204776
sc-204776A
sc-204776B
sc-204776C
25 g
100 g
1 kg
5 kg
$27.00
$56.00
$84.00
$343.00
2
(2)

Imidazole can act as a buffer that maintains the optimal pH for Papain activity, which is essential for its protease function.