Date published: 2026-5-30

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PRPF39 Inhibitors

PRPF39 inhibitors exert their effects through a variety of biochemical mechanisms, targeting different stages of pre-mRNA processing and splicing, where PRPF39 plays a critical role. Some inhibitors act by directly binding to components of the spliceosome, the molecular machinery that PRPF39 is a part of, thereby preventing the assembly and function of the complex. This direct interference with the spliceosome prevents PRPF39 from carrying out its essential role in the splicing of pre-mRNAs. Other compounds target upstream processes such as transcription and RNA polymerase II activity, leading to a reduced availability of pre-mRNA substrates for PRPF39 to act upon. By diminishing the pool of pre-mRNA, these inhibitors indirectly impact PRPF39's function, as there is less substrate to process and consequently less requirement for PRPF39's involvement in splicing mechanisms.

Additionally, some inhibitors affect PRPF39's activity by altering cellular conditions that are critical for its function. For instance, compounds that disrupt ionic gradients across cellular membranes can influence the electrochemical environment that is essential for the proper folding and function of RNA molecules and the splicing components interacting with them, including PRPF39. Altering the ionic balance can lead to a conformational change in both the pre-mRNA substrate and the splicing machinery, thus potentially inhibiting the function of PRPF39. Furthermore, small molecules that interfere with the phosphorylation state of splicing factors can also affect PRPF39's interaction with the spliceosome. Since phosphorylation is a key post-translational modification that regulates the activity and interactions of spliceosomal components, modulating this can change the spliceosome's assembly dynamics, thereby impacting PRPF39's role.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Staurosporine

62996-74-1sc-3510
sc-3510A
sc-3510B
100 µg
1 mg
5 mg
$82.00
$153.00
$396.00
113
(4)

A potent kinase inhibitor that broadly targets protein kinases which are crucial in various signaling pathways. Inhibition of these kinases can lead to the suppression of phosphorylation events that PRPF39 requires for proper spliceosome assembly and pre-mRNA processing.

Pladienolide B

445493-23-2sc-391691
sc-391691B
sc-391691A
sc-391691C
sc-391691D
sc-391691E
0.5 mg
10 mg
20 mg
50 mg
100 mg
5 mg
$299.00
$5699.00
$11099.00
$25500.00
$66300.00
$2875.00
63
(2)

A spliceosome inhibitor that specifically binds to the spliceosome complex, disrupting its function. This directly impacts PRPF39's role in the splicing of pre-mRNAs by preventing the spliceosome from processing its substrates.

Amiloride • HCl

2016-88-8sc-3578
sc-3578A
25 mg
100 mg
$22.00
$57.00
6
(2)

Inhibits sodium channels and indirectly interferes with cellular ion homeostasis. Since ion concentrations can affect RNA processing, this compound's action may indirectly inhibit PRPF39's function in pre-mRNA splicing by altering the cellular ionic environment.

Ivermectin

70288-86-7sc-203609
sc-203609A
100 mg
1 g
$57.00
$77.00
2
(2)

May interfere with intracellular transport and neurotransmission. These disruptions can affect nuclear processes, potentially hindering PRPF39's role in the spliceosome and mRNA processing.

Brefeldin A

20350-15-6sc-200861C
sc-200861
sc-200861A
sc-200861B
1 mg
5 mg
25 mg
100 mg
$31.00
$53.00
$124.00
$374.00
25
(3)

An inhibitor of protein transport from the endoplasmic reticulum to the Golgi apparatus. By disrupting this pathway, protein glycosylation and sorting are affected, which could indirectly inhibit PRPF39's function in mRNA processing.

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)

An adenosylmethionine decarboxylase inhibitor that impacts methylation processes, including RNA methylation. This inhibition can lead to alterations in splicing and indirectly affect PRPF39's role in pre-mRNA processing.

Triptolide

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

A diterpene triepoxide that inhibits the transcription of multiple genes by affecting RNA polymerase II. The decreased transcription indirectly affects PRPF39's function by reducing the substrate availability for mRNA splicing.

Etoposide (VP-16)

33419-42-0sc-3512B
sc-3512
sc-3512A
10 mg
100 mg
500 mg
$51.00
$231.00
$523.00
63
(1)

A topoisomerase II inhibitor that disrupts DNA replication and transcription. By affecting transcription, it can indirectly reduce the amount of pre-mRNA available for PRPF39 to process, thereby inhibiting its function.

Homoharringtonine

26833-87-4sc-202652
sc-202652A
sc-202652B
1 mg
5 mg
10 mg
$52.00
$125.00
$182.00
11
(1)

An alkaloid that inhibits protein synthesis by preventing the initial elongation step of translation. By inhibiting translation, this compound could alter the levels of essential splicing factors, indirectly impacting the function of PRPF39 in mRNA processing.