Date published: 2026-4-14

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cathepsin H Inhibitors

Cathepsin H inhibitors belong to a specific chemical class of compounds that are designed to target and inhibit the activity of cathepsin H enzymes. Cathepsin H is a lysosomal cysteine protease, which means it is primarily found within the lysosomes of cells and plays a crucial role in protein degradation and turnover. These enzymes are part of a larger family of proteases called cathepsins, which are involved in various cellular processes. Cathepsin H inhibitors work by binding to the active site of the enzyme, preventing its normal catalytic activity. This binding interaction disrupts the enzyme's ability to cleave and degrade proteins, thereby regulating the proteolytic processes that cathepsin H is involved in. The inhibitors typically possess a specific chemical structure that allows them to fit into the active site of the enzyme, creating a stable complex that inhibits its function. By inhibiting cathepsin H activity, these inhibitors can potentially modulate cellular processes that rely on the enzyme's proteolytic activity. Cathepsin H has been implicated in various physiological and pathological conditions, and its dysregulation has been associated with several diseases. Therefore, the development of cathepsin H inhibitors is of significant interest in biomedical research. It is worth noting that the design and synthesis of cathepsin H inhibitors require careful consideration of the structure-activity relationship to ensure high specificity and efficacy. Researchers employ various techniques, including computational modeling, high-throughput screening, and medicinal chemistry approaches, to identify and optimize compounds with the desired inhibitory properties.The study of cathepsin H inhibitors and their interactions with the enzyme provides valuable insights into the fundamental biology of cathepsins and their involvement in cellular processes. The development and characterization of these inhibitors contribute to the broader field of enzyme inhibition and serve as important tools for further understanding the intricate mechanisms underlying protein degradation and turnover in cells.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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 hemisulfate is a potent inhibitor of cathepsin H, characterized by its ability to form stable complexes with the enzyme. This interaction is facilitated by specific hydrogen bonding and hydrophobic contacts, which enhance binding affinity. The compound's structural features allow it to effectively mimic natural substrates, disrupting the enzyme's catalytic activity. Its influence on proteolytic pathways highlights the intricate balance of enzyme regulation and substrate competition in cellular processes.

E-64-d

88321-09-9sc-201280
sc-201280A
1 mg
5 mg
$71.00
$281.00
37
(4)

E-64-d is a selective inhibitor of cathepsin H, distinguished by its unique ability to engage in covalent interactions with the enzyme's active site. This compound exhibits a high degree of specificity due to its structural conformation, which aligns perfectly with the enzyme's catalytic residues. The kinetics of E-64-d reveal a slow-binding mechanism, allowing for prolonged inhibition. Its interactions can modulate proteolytic activity, influencing cellular homeostasis and protein turnover.

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 acts as a potent inhibitor of cathepsin H, characterized by its irreversible binding to the enzyme's active site through a nucleophilic attack. This compound's unique electrophilic nature facilitates the formation of a stable covalent bond, effectively blocking substrate access. The inhibition kinetics suggest a time-dependent process, where the rate of inactivation is influenced by the enzyme's conformational dynamics. E-64's selectivity stems from its tailored molecular structure, which enhances its affinity for cathepsin H over other cysteine proteases.

Z-FA-FMK

197855-65-5sc-201303
sc-201303A
1 mg
5 mg
$128.00
$372.00
19
(1)

Z-FA-FMK is a selective inhibitor of cathepsin H, distinguished by its ability to form a covalent bond with the enzyme via a unique electrophilic mechanism. This compound exhibits a high degree of specificity due to its structural design, which allows for precise interactions with the enzyme's active site. The kinetics of inhibition reveal a rapid onset, with a significant impact on the enzyme's catalytic efficiency, highlighting its role in modulating proteolytic pathways.

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)

Chymostatin is a potent inhibitor of cathepsin H, characterized by its ability to engage in non-covalent interactions with the enzyme's active site. This compound exhibits unique binding dynamics, leading to a conformational change in the enzyme that alters its substrate affinity. The inhibition kinetics suggest a competitive mechanism, where Chymostatin effectively disrupts the proteolytic activity, influencing various cellular processes and pathways. Its selectivity stems from specific molecular interactions that enhance its efficacy.

E-64-c

76684-89-4sc-201278
sc-201278A
1 mg
5 mg
$103.00
$400.00
3
(2)

E-64-c is a selective inhibitor of cathepsin H, distinguished by its irreversible binding to the enzyme's active site through covalent modification. This compound forms a stable adduct with the active site cysteine residue, effectively blocking substrate access. The kinetics of E-64-c reveal a time-dependent inhibition profile, highlighting its potency. Its unique structural features facilitate specific interactions that enhance its inhibitory action, impacting proteolytic pathways in cellular environments.