Date published: 2025-10-15

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SUV39H1 Inhibitors

SUV39H1 inhibitors are a class of chemical compounds specifically designed to inhibit the activity of the SUV39H1 enzyme, a histone methyltransferase. This enzyme plays a crucial role in the methylation of histone H3 at lysine 9 (H3K9), a post-translational modification that is closely associated with the formation of heterochromatin, a tightly packed form of DNA. Inhibition of SUV39H1 can alter the methylation status of histones, thereby affecting the chromatin structure and impacting the expression of various genes. The precise mechanisms and outcomes of SUV39H1 inhibition are topics of extensive biochemical and molecular biological research, aimed at deepening our understanding of chromatin dynamics and gene regulation. The structure and activity of SUV39H1 inhibitors vary widely, reflecting the diversity of chemical approaches that can be used to interfere with the function of the SUV39H1 enzyme. Generally, these compounds are designed to fit into the active site of the enzyme, preventing it from interacting with its histone substrates and thus blocking its methyltransferase activity. This blockage affects the epigenetic landscape of the cell by preventing the addition of methyl groups to histone H3 at lysine 9. As a result, regions of chromatin that would typically be condensed into inactive heterochromatin may remain in a more open configuration, accessible for transcription. The intricate interplay between histone methylation, chromatin structure, and gene expression, modulated by the action of SUV39H1 and its inhibitors, is a key focus of investigation in the field of epigenetics, shedding light on the complex regulatory networks that govern cellular function.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Chaetocin

28097-03-2sc-200893
200 µg
$120.00
5
(1)

Chaetocin (CAS 28097-03-2) is a mycotoxin found in Chaetomium fungi. As a histone methyltransferase inhibitor, it specifically inhibits SUV39H1, impacting histone methylation and gene expression. This action can influence various cellular processes, providing a tool for studying epigenetic mechanisms.

BIX01294 hydrochloride

1392399-03-9sc-293525
sc-293525A
sc-293525B
1 mg
5 mg
25 mg
$36.00
$110.00
$400.00
(1)

BIX01294 hydrochloride is a diazepin-quinazolin-amine derivative that selectively inhibits SUV39H1, leading to a decrease in histone H3 lysine 9 methylation. It targets the SET domain of the enzyme, disrupting its function.

A-366

1527503-11-2sc-507495
10 mg
$195.00
(0)

A-366 selectively inhibits SUV39H1, resulting in reduced levels of H3K9me3, a marker of gene repression. It binds to the catalytic domain of SUV39H1, impairing its methyltransferase activity.

UNC0638

1255580-76-7sc-397012
10 mg
$315.00
(0)

UNC0638 is a potent and selective inhibitor of SUV39H1, reducing global levels of H3K9me2 and H3K9me3 without affecting other histone methyltransferases. It interacts with the SET domain, leading to impaired SUV39H1 activity.

PF 477736

952021-60-2sc-362781
sc-362781A
5 mg
25 mg
$113.00
$423.00
(1)

PF-477736 selectively inhibits SUV39H1, leading to reduced H3K9me3 levels and altered chromatin structure. While it primarily targets DNA damage checkpoint kinases, it also impacts SUV39H1 activity.

Quinacrine, Dihydrochloride

69-05-6sc-204222
sc-204222B
sc-204222A
sc-204222C
sc-204222D
100 mg
1 g
5 g
200 g
300 g
$45.00
$56.00
$85.00
$3193.00
$4726.00
4
(2)

Quinacrine has been found to indirectly influence SUV39H1 activity and reduce H3K9 methylation, possibly through interaction with DNA or chromatin remodeling complexes.

1-Hydrazinophthalazine Hydrochloride

304-20-1sc-206167
10 g
$280.00
(0)

1-Hydrazinophthalazine Hydrochloride, an antihypertensive agent, has demonstrated potential in reducing SUV39H1 expression and activity, leading to alterations in histone methylation and gene expression. Its effect on SUV39H1 is likely indirect, possibly through epigenetic modifications.

5-Aza-2′-Deoxycytidine

2353-33-5sc-202424
sc-202424A
sc-202424B
25 mg
100 mg
250 mg
$214.00
$316.00
$418.00
7
(1)

5-Aza-2'-deoxycytidine, a DNA methyltransferase inhibitor, can indirectly reduce SUV39H1 expression and affect histone methylation patterns, leading to changes in gene expression.