Date published: 2026-4-1

1-800-457-3801

SCBT Portrait Logo
Seach Input

Trypsin-3 Inhibitors

Trypsin-3 inhibitors are a class of chemical compounds designed to specifically target and inhibit the activity of trypsin-3, a serine protease enzyme that plays a role in protein digestion and cellular proteolysis. Trypsin-3, also known as mesotrypsin, is a distinct isoform of trypsin that exhibits resistance to common protease inhibitors and has specialized substrate preferences compared to other trypsin isoforms. Unlike trypsin-1 and trypsin-2, trypsin-3 is involved in more specialized proteolytic processes and has evolved unique biochemical properties that allow it to degrade proteins and inhibitors that typically block other proteases. Trypsin-3 inhibitors are designed to block the enzyme's active site or other critical regions necessary for its catalytic activity, thereby preventing the enzyme from cleaving peptide bonds in its target proteins.

The chemical structure of trypsin-3 inhibitors often includes molecular features that allow them to bind specifically to the active site of trypsin-3 while maintaining selectivity over other serine proteases, including other trypsin isoforms. These inhibitors may mimic the enzyme's natural substrates or interact with specific residues in the active site that are unique to trypsin-3. Designing effective inhibitors requires a deep understanding of the enzyme's three-dimensional structure and its mechanism of action, given its resistance to standard protease inhibitors. Researchers focus on developing inhibitors that not only block trypsin-3's proteolytic activity but also provide insights into the physiological and molecular functions of this enzyme in protease regulation. By studying trypsin-3 inhibitors, scientists aim to uncover the specific roles that this enzyme plays in cellular environments and how it differs from other members of the trypsin family in terms of function and regulation.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Aprotinin

9087-70-1sc-3595
sc-3595A
sc-3595B
10 mg
100 mg
1 g
$112.00
$408.00
$3000.00
51
(2)

Aprotinin may inhibit trypsin expression by acting as a competitive inhibitor, binding to the active site of trypsin and preventing its enzymatic activity. This inhibition leads to reduced trypsin expression due to the negative feedback regulation in the presence of excess inhibitor.

Nafamostat mesylate

82956-11-4sc-201307
sc-201307A
10 mg
50 mg
$82.00
$306.00
4
(1)

Nafamostat may inhibit trypsin expression by acting as a serine protease inhibitor, thereby reducing the activity of trypsin and potentially triggering negative feedback mechanisms that downregulate trypsin expression.

Gabexate mesylate

56974-61-9sc-215066
5 mg
$100.00
(0)

Gabexate may inhibit trypsin expression by acting as a serine protease inhibitor, reducing trypsin activity and potentially triggering negative feedback mechanisms that downregulate trypsin expression.

Trypsin Inhibitor, soybean

9035-81-8sc-29129
sc-29129A
sc-29129B
sc-29129C
sc-29129D
sc-29129F
sc-29129E
50 mg
250 mg
1 g
5 g
10 g
25 g
100 g
$41.00
$135.00
$288.00
$1100.00
$1600.00
$2600.00
$10500.00
14
(1)

Soybean trypsin inhibitor may inhibit trypsin expression by competitively binding to the active site of trypsin, leading to the formation of a stable complex and the subsequent downregulation of trypsin expression due to the negative feedback regulation in the presence of excess inhibitor.

L-Lysine

56-87-1sc-207804
sc-207804A
sc-207804B
25 g
100 g
1 kg
$95.00
$263.00
$529.00
(1)

Lysine may inhibit trypsin expression by potentially acting as a competitive inhibitor at the trypsin active site, altering the enzyme's conformation and subsequently inhibiting its expression.

Phenylmethylsulfonyl Fluoride

329-98-6sc-3597
sc-3597A
1 g
100 g
$50.00
$697.00
92
(1)

PMSF may inhibit trypsin expression by modifying active site serine residues, thereby inactivating trypsin and potentially triggering negative feedback mechanisms that downregulate trypsin expression.

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)

Antipain may inhibit trypsin expression by acting as a competitive inhibitor, binding to the active site of trypsin and preventing its enzymatic activity. This inhibition leads to reduced trypsin expression due to the negative feedback regulation in the presence of excess inhibitor.

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
$73.00
$148.00
$316.00
$499.00
$1427.00
$101.00
19
(3)

Leupeptin may inhibit trypsin expression by acting as a competitive inhibitor, binding to the active site of trypsin and preventing its enzymatic activity. This inhibition leads to reduced trypsin expression due to the negative feedback regulation in the presence of excess inhibitor.

E-64

66701-25-5sc-201276
sc-201276A
sc-201276B
5 mg
25 mg
250 mg
$281.00
$947.00
$1574.00
14
(0)

E-64 may inhibit trypsin expression by acting as a competitive inhibitor, binding to the active site of trypsin and preventing its enzymatic activity. This inhibition leads to reduced trypsin expression due to the negative feedback regulation in the presence of excess inhibitor.