Date published: 2025-10-11

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POLR3D Activators

RNA polymerase III subunit D (POLR3D) is an integral component of RNA polymerase III, the enzyme complex responsible for the synthesis of small, non-coding RNAs in eukaryotic cells. The gene that encodes for this protein is also referred to as POLR3D. POLR3D serves as one of the 17 subunits that constitute the RNA polymerase III complex, which is tasked with transcribing genes such as 5S rRNA, tRNA, and other small RNAs that play vital roles in the regulation of gene expression and the maintenance of cellular function.

POLR3D specifically is part of the core assembly of RNA polymerase III, contributing to the structural and functional stability of the complex. Its interactions within the polymerase are essential for the accurate initiation and elongation phases of transcription. The subunit is also believed to participate in the intricate processes that govern the recognition of promoter regions on DNA, ensuring that RNA polymerase III reliably targets the correct genes for transcription.Mutations in the POLR3D gene have been linked to rare and severe disorders, reflecting the critical nature of its role in cellular biology. These disorders are often characterized by defects in brain development and function, demonstrating the importance of POLR3D in the central nervous system. Additionally, given the fundamental necessity of the small RNAs synthesized by RNA polymerase III in various cellular processes, including protein synthesis and RNA splicing, POLR3D's involvement in health and disease is broad and significant.

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Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

α-Amanitin

23109-05-9sc-202440
sc-202440A
1 mg
5 mg
$260.00
$1029.00
26
(2)

Alpha-Amanitin, a potent inhibitor of RNA polymerases II and III, can indirectly influence POLR3D by altering transcriptional dynamics and potentially compensatory mechanisms in the cell.

Actinomycin D

50-76-0sc-200906
sc-200906A
sc-200906B
sc-200906C
sc-200906D
5 mg
25 mg
100 mg
1 g
10 g
$73.00
$238.00
$717.00
$2522.00
$21420.00
53
(3)

Actinomycin D intercalates into DNA and inhibits RNA synthesis, potentially affecting POLR3D activity indirectly through transcriptional regulation.

DRB

53-85-0sc-200581
sc-200581A
sc-200581B
sc-200581C
10 mg
50 mg
100 mg
250 mg
$42.00
$185.00
$310.00
$650.00
6
(1)

DRB inhibits RNA Polymerase II, which could lead to compensatory changes in RNA Polymerase III activity and indirectly affect POLR3D.

Triptolide

38748-32-2sc-200122
sc-200122A
1 mg
5 mg
$88.00
$200.00
13
(1)

Triptolide inhibits RNA Polymerase II and III, potentially influencing POLR3D activity indirectly by altering global transcriptional processes.

Cordycepin

73-03-0sc-203902
10 mg
$99.00
5
(1)

Cordycepin, an adenosine analog, can inhibit RNA synthesis, potentially impacting POLR3D activity indirectly through effects on transcriptional regulation.

Cisplatin

15663-27-1sc-200896
sc-200896A
100 mg
500 mg
$76.00
$216.00
101
(4)

Cisplatin causes DNA cross-linking, which can indirectly affect POLR3D activity by altering the transcriptional accessibility of DNA.

Leptomycin B

87081-35-4sc-358688
sc-358688A
sc-358688B
50 µg
500 µg
2.5 mg
$105.00
$408.00
$1224.00
35
(2)

By inhibiting nuclear export, Leptomycin B could indirectly influence POLR3D by altering the distribution and availability of transcription factors and RNA molecules.

MG-132 [Z-Leu- Leu-Leu-CHO]

133407-82-6sc-201270
sc-201270A
sc-201270B
5 mg
25 mg
100 mg
$56.00
$260.00
$980.00
163
(3)

This proteasome inhibitor might indirectly affect POLR3D by stabilizing proteins that regulate transcription, potentially influencing RNA Polymerase III activity.

Trichostatin A

58880-19-6sc-3511
sc-3511A
sc-3511B
sc-3511C
sc-3511D
1 mg
5 mg
10 mg
25 mg
50 mg
$149.00
$470.00
$620.00
$1199.00
$2090.00
33
(3)

As a histone deacetylase inhibitor, Trichostatin A affects chromatin remodeling, potentially impacting POLR3D activity through changes in transcriptional regulation.

5-Azacytidine

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

This DNA methyltransferase inhibitor can alter gene expression patterns, potentially affecting POLR3D activity indirectly through epigenetic modifications.