Date published: 2026-4-1

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KLKb5 Inhibitors

KLKb5 inhibitors are a class of chemical compounds designed to target and modulate the activity of kallikrein-related peptidase 5 (KLK5), an enzyme primarily involved in proteolytic processes. KLK5 belongs to the family of serine proteases, which are known for their ability to cleave peptide bonds in proteins. KLK5 plays a significant role in skin desquamation, a process by which dead skin cells are shed, and its overactivation can lead to excessive degradation of structural proteins, potentially impacting cellular and extracellular interactions. KLKb5 inhibitors work by binding to the active site of KLK5, preventing it from catalyzing the breakdown of specific protein substrates. By doing so, these inhibitors help to maintain the integrity of the substrate proteins, ensuring that the enzymatic activity of KLK5 is kept under control in various biological systems.

These inhibitors are often small molecules or peptides that are specifically designed to achieve high selectivity for KLK5, distinguishing them from other members of the kallikrein family. The structural characteristics of these inhibitors typically include functional groups that interact with key amino acids in the KLK5 enzyme's active site. This selective binding helps to fine-tune the regulatory mechanisms of proteolysis in environments where KLK5 is active. Developing effective KLKb5 inhibitors requires an in-depth understanding of the enzyme's structure, including its substrate recognition sites, as well as insights into the dynamics of its catalytic mechanism. Research into KLKb5 inhibitors often involves biochemical assays to assess their binding affinity, specificity, and inhibitory potency, ensuring they effectively block KLK5 activity without unintended interactions with other serine proteases.

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Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Trichostatin A

58880-19-6sc-3511
sc-3511A
sc-3511B
sc-3511C
sc-3511D
1 mg
5 mg
10 mg
25 mg
50 mg
$152.00
$479.00
$632.00
$1223.00
$2132.00
33
(3)

Trichostatin A could directly reduce transcriptional activity of the KLKb5 gene by increasing histone acetylation, leading to a tightly packed chromatin structure that is less accessible to transcription machinery.

5-Azacytidine

320-67-2sc-221003
500 mg
$280.00
4
(1)

This compound could downregulate KLKb5 by incorporating into DNA and RNA, leading to the direct inhibition of DNA methyltransferases, resulting in DNA demethylation and repression of gene expression.

Suberoylanilide Hydroxamic Acid

149647-78-9sc-220139
sc-220139A
100 mg
500 mg
$133.00
$275.00
37
(2)

Suberoylanilide Hydroxamic Acid might specifically decrease the expression of KLKb5 by targeting histone deacetylases, which would disrupt the removal of acetyl groups on histones, promoting a closed chromatin conformation that hinders gene transcription.

Retinoic Acid, all trans

302-79-4sc-200898
sc-200898A
sc-200898B
sc-200898C
500 mg
5 g
10 g
100 g
$66.00
$325.00
$587.00
$1018.00
28
(1)

By binding to retinoic acid receptors that interact with the promoter region of KLKb5, retinoic acid could repress gene expression through the recruitment of co-repressor complexes to the DNA.

D,L-Sulforaphane

4478-93-7sc-207495A
sc-207495B
sc-207495C
sc-207495
sc-207495E
sc-207495D
5 mg
10 mg
25 mg
1 g
10 g
250 mg
$153.00
$292.00
$489.00
$1325.00
$8465.00
$933.00
22
(1)

DL-Sulforaphane could suppress the expression of the KLKb5 gene by activating antioxidant response pathways that may include the transcriptional downregulation of certain proteases as a secondary response to maintain cellular homeostasis.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

This polyphenol might attenuate KLKb5 expression by interfering with DNA methyltransferases, which could lead to the hypomethylation of CpG islands in the promoter region, resulting in gene silencing.

Genistein

446-72-0sc-3515
sc-3515A
sc-3515B
sc-3515C
sc-3515D
sc-3515E
sc-3515F
100 mg
500 mg
1 g
5 g
10 g
25 g
100 g
$45.00
$164.00
$200.00
$402.00
$575.00
$981.00
$2031.00
46
(1)

Genistein could specifically target the upstream signaling pathways that control the transcription of KLKb5, such as by inhibiting tyrosine kinases that trigger transcription factor activation.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

Curcumin has the potential to repress the transcription of KLKb5 by inhibiting the activation of NF-κB, a transcription factor that may directly bind to the promoter region of the gene and enhance its expression.

Resveratrol

501-36-0sc-200808
sc-200808A
sc-200808B
100 mg
500 mg
5 g
$80.00
$220.00
$460.00
64
(2)

By activating SIRT1, a NAD-dependent deacetylase, resveratrol might lead to the deacetylation of histones at the KLKb5 gene locus, thereby suppressing its transcription.

LY 294002

154447-36-6sc-201426
sc-201426A
5 mg
25 mg
$123.00
$400.00
148
(1)

This chemical could downregulate KLKb5 by inhibiting the PI3K/Akt pathway, which can have a downstream effect on the expression of genes involved in cell survival and growth, including various proteases.