Date published: 2026-5-30

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HtrA4 Inhibitors

The chemical class known as HTRA4 Inhibitors encompasses a diverse range of compounds specifically designed or identified to inhibit the activity of HtrA serine peptidase 4, a protease involved in various cellular processes including protein quality control and signal transduction. These inhibitors typically function by interacting with the active site of HTRA4, often targeting the serine residue essential for its proteolytic activity. The inhibitors can bind reversibly or irreversibly, altering the enzyme's conformation, substrate binding, or catalytic activity. Some members of this class achieve inhibition by mimicking substrate structure, thereby blocking access to the actual substrates, while others might induce conformational changes that render the protease inactive or less active. The design and selection of these inhibitors are guided by the understanding of HTRA4's structure, mechanism of action, and the biological pathways it influences.

The impact of inhibiting HTRA4 with these compounds can extend to various biological processes where HTRA4 is a critical regulatory factor. By modulating the activity of HTRA4, these inhibitors can influence protein degradation pathways, cellular stress responses, and potentially other signaling pathways regulated by this protease. Researchers aim to develop inhibitors with high specificity to minimize unintended interactions with other proteases or cellular components. The development and study of HTRA4 inhibitors are complex and require a deep understanding of biochemistry and molecular biology. Through detailed studies, these inhibitors provide valuable tools for dissecting the roles of HTRA4 in health and disease and can contribute significantly to our understanding of cellular homeostasis and the intricate network of proteolytic regulation.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

AEBSF hydrochloride

30827-99-7sc-202041
sc-202041A
sc-202041B
sc-202041C
sc-202041D
sc-202041E
50 mg
100 mg
5 g
10 g
25 g
100 g
$65.00
$122.00
$428.00
$851.00
$1873.00
$4994.00
33
(1)

A serine protease inhibitor that could possibly inhibit HTRA4 by covalently modifying the serine residue in the active site.

Phenylmethylsulfonyl Fluoride

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

A well-known serine protease inhibitor that could possibly inhibit HTRA4 by irreversibly modifying the serine residue in the enzyme's active site.

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)

A reversible inhibitor known to target serine and cysteine proteases; could possibly inhibit HTRA4 by binding to its active site.

E-64

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

Primarily a cysteine protease inhibitor, but could possibly affect HTRA4 activity if it interacts with specific structural domains or substrates.

Chymostatin

9076-44-2sc-202541
sc-202541A
sc-202541B
sc-202541C
sc-202541D
5 mg
10 mg
25 mg
50 mg
100 mg
$156.00
$260.00
$640.00
$1186.00
$2270.00
3
(1)

A chymotrypsin inhibitor that could possibly inhibit HTRA4 if it has similar substrate specificity or structural properties.

Aprotinin

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

A small protein inhibitor of several serine proteases, known to form a tight complex with the protease active site, potentially inhibiting HTRA4.

Gabexate mesylate

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

A synthetic inhibitor of serine proteases, could possibly inhibit HTRA4 by interfering with its enzymatic mechanism.

Camostat mesylate

59721-29-8sc-203867
sc-203867A
sc-203867B
sc-203867C
sc-203867D
sc-203867E
10 mg
50 mg
500 mg
1 g
10 g
100 g
$43.00
$183.00
$312.00
$624.00
$2081.00
$4474.00
5
(0)

A synthetic serine protease inhibitor, potentially inhibiting HTRA4 through interaction with its active site.

Nafamostat mesylate

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

A broad-spectrum serine protease inhibitor that could possibly inhibit HTRA4 activity by binding to its active site.