Date published: 2026-4-1

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D19Bwg1357e Inhibitors

Pum3, a member of the evolutionarily conserved Pumilio and Fem-3 mRNA-binding factor family, plays a crucial role in diverse biological processes through its tandem 36 amino acid pumilio homolog domains. This protein distinguishes itself by a novel protein fold with 11 pumilio homolog domains, allowing it to bind to DNA and single- and double-stranded RNA without sequence specificity. The inhibitors listed above target Pum3 directly or indirectly by interfering with key processes related to mRNA synthesis and gene expression regulation. Actinomycin D, Cordycepin, and Fluorouracil, for example, inhibit transcription or nucleotide metabolism, disrupting the synthesis of target mRNAs and impacting Pum3's regulatory function. Alpha-Amanitin and Rifampicin hinder RNA polymerase activity, leading to transcriptional arrest and influencing Pum3's ability to interact with target mRNAs. Triptolide, 6-Thioguanine, and 6-Mercaptopurine disrupt nucleotide metabolism, affecting RNA synthesis and indirectly influencing Pum3. Additionally, Cisplatin and 8-Methoxypsoralen, through DNA adduct formation and crosslinking, respectively, interfere with transcription, impacting Pum3's regulatory role in gene expression. Understanding the intricacies of these inhibitors provides insights into potential strategies for modulating Pum3 activity in diverse biological processes. The diverse chemical structures and mechanisms of action presented by these inhibitors offer a valuable foundation for further exploration into the molecular regulation of Pum3 and its functional implications in cellular processes.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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, a transcription inhibitor, binds to DNA and inhibits RNA synthesis. By disrupting the transcription process, it indirectly influences Pum3, as Pum3 is involved in mRNA binding and regulation. The inhibition of transcription impacts Pum3's ability to interact with target mRNAs, leading to decreased protein expression.

Cordycepin

73-03-0sc-203902
10 mg
$101.00
5
(1)

Cordycepin, an adenosine analog, inhibits mRNA synthesis by terminating transcription. This indirect inhibition impacts Pum3, as Pum3 is involved in mRNA binding. Cordycepin's action disrupts the synthesis of target mRNAs, diminishing Pum3's ability to regulate gene expression.

Fluorouracil

51-21-8sc-29060
sc-29060A
1 g
5 g
$37.00
$152.00
11
(1)

Fluorouracil, an antimetabolite, interferes with RNA synthesis by inhibiting thymidylate synthase. Its action indirectly influences Pum3, as Pum3 is involved in mRNA binding. By disrupting nucleotide metabolism, 5-Fluorouracil hinders the synthesis of target mRNAs, affecting Pum3's regulatory function on gene expression.

α-Amanitin

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

α-Amanitin, a cyclic peptide, inhibits RNA polymerase II activity, leading to transcriptional arrest. Its indirect impact on Pum3 results from hindering mRNA synthesis, a process central to Pum3's function. Alpha-Amanitin disrupts the synthesis of target mRNAs, affecting Pum3's regulatory role in gene expression.

Rifampicin

13292-46-1sc-200910
sc-200910A
sc-200910B
sc-200910C
1 g
5 g
100 g
250 g
$97.00
$328.00
$676.00
$1467.00
6
(1)

Rifampicin, an antibiotic, inhibits bacterial RNA polymerase. Its indirect impact on Pum3 is due to the shared eukaryotic RNA polymerase structure. Rifampicin hinders RNA synthesis, influencing Pum3's ability to interact with target mRNAs and regulate gene expression.

Triptolide

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

Triptolide, a diterpene triepoxide, inhibits RNA polymerase II-mediated transcription. Its indirect impact on Pum3 arises from the disruption of mRNA synthesis, crucial for Pum3's regulatory role. Triptolide impairs the synthesis of target mRNAs, influencing Pum3's ability to regulate gene expression.

6-Thioguanine

154-42-7sc-205587
sc-205587A
250 mg
500 mg
$42.00
$54.00
3
(1)

6-Thioguanine, a nucleotide analog, disrupts nucleotide metabolism, affecting RNA synthesis. Its indirect impact on Pum3 results from hindering mRNA synthesis, a process central to Pum3's function. Thioguanine impairs the synthesis of target mRNAs, influencing Pum3's ability to interact with and regulate gene expression.

6-Mercaptopurine

50-44-2sc-361087
sc-361087A
50 mg
100 mg
$72.00
$104.00
(0)

6-Mercaptopurine, a purine analog, interferes with nucleotide metabolism, impacting RNA synthesis. Its indirect impact on Pum3 arises from hindering mRNA synthesis, a process central to Pum3's function. 6-Mercaptopurine disrupts the synthesis of target mRNAs, influencing Pum3's ability to interact with and regulate gene expression.

Cisplatin

15663-27-1sc-200896
sc-200896A
100 mg
500 mg
$138.00
$380.00
101
(4)

Cisplatin, a platinum-based chemotherapy drug, forms DNA adducts, disrupting transcription. Its indirect impact on Pum3 results from hindering mRNA synthesis, crucial for Pum3's regulatory role. Cisplatin impairs the synthesis of target mRNAs, influencing Pum3's ability to interact with and regulate gene expression.

Methoxsalen (8-Methoxypsoralen)

298-81-7sc-200505
1 g
$28.00
1
(1)

8-Methoxypsoralen, a photosensitizing agent, crosslinks with DNA, inhibiting transcription. Its indirect impact on Pum3 arises from disrupting the transcription process, vital for mRNA synthesis. 8-Methoxypsoralen impairs Pum3's ability to interact with target mRNAs, leading to decreased regulatory control over gene expression.