Date published: 2026-4-21

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Med31 Inhibitors

Med31 is a conserved component of the Mediator complex, a multi-subunit protein complex that plays a crucial role in transcriptional regulation by mediating the interaction between transcription factors and RNA polymerase II. As a subunit of the Mediator complex, Med31 is involved in bridging the communication between transcriptional activators and the transcription machinery, thereby facilitating the initiation and regulation of gene expression. Additionally, Med31 has been implicated in various cellular processes beyond transcription, including cell cycle progression, DNA repair, and chromatin remodeling, highlighting its multifunctional role in coordinating diverse cellular activities. Inhibition of Med31 can occur through various mechanisms aimed at disrupting its interaction with other components of the Mediator complex or its association with transcriptional activators. One mechanism of inhibition involves the disruption of protein-protein interactions essential for Med31 function within the Mediator complex, thereby impairing its ability to facilitate transcriptional activation. Additionally, inhibition of Med31 can be achieved by targeting its binding partners or cofactors, impeding the assembly of functional Mediator complexes necessary for transcriptional regulation. Furthermore, modulation of post-translational modifications of Med31 or its interacting partners may also lead to inhibition of its activity, thereby interfering with its role in gene expression regulation. Overall, elucidating the mechanisms of Med31 inhibition provides valuable insights into its function in transcriptional regulation and offers avenues for intervention in diseases where dysregulation of gene expression is implicated.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Triptolide

38748-32-2sc-200122
sc-200122A
1 mg
5 mg
$90.00
$204.00
13
(1)

Triptolide can inhibit the overall transcription by RNA polymerase II, thereby affecting Med31.

α-Amanitin

23109-05-9sc-202440
sc-202440A
1 mg
5 mg
$269.00
$1050.00
26
(2)

α-Amanitin can inhibit RNA polymerase II, which would indirectly impede the function of Med31.

Actinomycin D

50-76-0sc-200906
sc-200906A
sc-200906B
sc-200906C
sc-200906D
5 mg
25 mg
100 mg
1 g
10 g
$74.00
$243.00
$731.00
$2572.00
$21848.00
53
(3)

Actinomycin D intercalates into DNA, preventing transcription and indirectly affecting Med31.

DRB

53-85-0sc-200581
sc-200581A
sc-200581B
sc-200581C
10 mg
50 mg
100 mg
250 mg
$43.00
$189.00
$316.00
$663.00
6
(1)

DRB inhibits phosphorylation of the C-terminal domain of RNA polymerase II, affecting Med31.

Flavopiridol

146426-40-6sc-202157
sc-202157A
5 mg
25 mg
$78.00
$259.00
41
(3)

Flavopiridol inhibits CDK9, a kinase for RNA polymerase II, thus indirectly affecting Med31.

I-CBP112

1640282-31-0sc-507494
25 mg
$400.00
(0)

I-CBP112 disrupts the interaction of transcription factors with the mediator complex.

Sinefungin

58944-73-3sc-203263
sc-203263B
sc-203263C
sc-203263A
1 mg
100 mg
1 g
10 mg
$271.00
$5202.00
$40368.00
$704.00
4
(1)

Sinefungin inhibits methyltransferase activity, potentially affecting transcription and Med31.

Isoginkgetin

548-19-6sc-507430
5 mg
$225.00
(0)

Isoginkgetin is a pre-mRNA splicing inhibitor that might indirectly affect Med31's role.

Leptomycin B

87081-35-4sc-358688
sc-358688A
sc-358688B
50 µg
500 µg
2.5 mg
$107.00
$416.00
$1248.00
35
(2)

Leptomycin B inhibits nuclear export, possibly altering transcriptional processes involving Med31.

(±)-JQ1

1268524-69-1sc-472932
sc-472932A
5 mg
25 mg
$231.00
$863.00
1
(0)

These inhibitors disrupt the reading of acetylated histones, indirectly affecting Med31's role.