Date published: 2026-4-1

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PAPD1 Inhibitors

PAPD1 inhibitors are a class of chemical compounds that specifically target and impede the function of the PAPD1 enzyme, which stands for Poly(A) Polymerase Domains Containing 1. This enzyme plays a pivotal role in the post-transcriptional modification of RNA molecules within cells. The modulation of RNA stability and degradation is a crucial process in the regulation of gene expression, and PAPD1 is involved in the polyadenylation of RNA's 3' end, a key step in maturing RNA transcripts for their proper function within the cellular environment. By inhibiting the activity of PAPD1, these compounds can affect the length of the poly(A) tail of RNA molecules, which in turn can influence the RNA's stability, its translation efficiency, and the overall regulation of gene expression patterns.

The specific mechanism by which PAPD1 inhibitors exert their influence involves the binding to the active site of the PAPD1 enzyme or to allosteric sites that modulate the enzyme's activity. By doing so, they can prevent the proper association of PAPD1 with its RNA substrates or the necessary catalytic activity required for the addition of adenosine monophosphate (AMP) units to the RNA molecule. The structural diversity among PAPD1 inhibitors allows for a range of selectivity and affinity for the enzyme, which can lead to varying degrees of inhibition. The design of these molecules often incorporates the knowledge of the enzyme's structure and the key interactions that are essential for its activity. This class of inhibitors is the subject of intensive research, aiming to understand the nuanced ways in which they influence the intricate cellular processes related to RNA metabolism.

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Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Trichostatin A

58880-19-6sc-3511
sc-3511A
sc-3511B
sc-3511C
sc-3511D
1 mg
5 mg
10 mg
25 mg
50 mg
$152.00
$479.00
$632.00
$1223.00
$2132.00
33
(3)

Trichostatin A is a histone deacetylase inhibitor. By inhibiting histone deacetylase, Trichostatin A causes hyperacetylation of histones, leading to alterations in chromatin structure and function, which can result in the downregulation of genes such as PAPD1.

5-Azacytidine

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

5-Azacytidine acts as a DNA methyltransferase inhibitor. By inhibiting this enzyme, it leads to hypomethylation of DNA, potentially downregulating PAPD1 expression if the gene is subject to regulation by DNA methylation patterns.

LY 294002

154447-36-6sc-201426
sc-201426A
5 mg
25 mg
$123.00
$400.00
148
(1)

LY294002 is a PI3K inhibitor. By blocking phosphatidylinositol 3-kinase (PI3K) signaling, it may lead to decreased activation of downstream targets that could be involved in the transcriptional regulation of PAPD1, thus indirectly decreasing PAPD1 activity.

Rapamycin

53123-88-9sc-3504
sc-3504A
sc-3504B
1 mg
5 mg
25 mg
$63.00
$158.00
$326.00
233
(4)

Rapamycin is an mTOR inhibitor. Through inhibition of mTOR, it can lead to decreased protein synthesis and potentially reduce the expression of proteins including PAPD1, given mTOR's role in regulating cap-dependent translation.

Alsterpaullone

237430-03-4sc-202453
sc-202453A
1 mg
5 mg
$68.00
$312.00
2
(1)

Alsterpaullone is a cyclin-dependent kinase inhibitor. By inhibiting CDKs, it can arrest the cell cycle, potentially affecting the transcription and translation of various proteins, including PAPD1, thereby reducing its levels.

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

133407-82-6sc-201270
sc-201270A
sc-201270B
5 mg
25 mg
100 mg
$60.00
$265.00
$1000.00
163
(3)

MG132 is a proteasome inhibitor. By preventing protein degradation through the ubiquitin-proteasome pathway, it could lead to the accumulation of proteins that may negatively regulate PAPD1 expression or activity.

PD 98059

167869-21-8sc-3532
sc-3532A
1 mg
5 mg
$40.00
$92.00
212
(2)

PD98059 is a MEK inhibitor. By inhibiting MEK, it disrupts the MAPK/ERK pathway, which could downregulate the expression of several genes, possibly including PAPD1, if it is regulated by this pathway.

SB 431542

301836-41-9sc-204265
sc-204265A
sc-204265B
1 mg
10 mg
25 mg
$82.00
$216.00
$416.00
48
(1)

SB431542 is an inhibitor of the TGF-beta receptor. Inhibition of TGF-beta signaling can lead to changes in gene expression profiles, potentially including decreased expression of PAPD1 if it is influenced by TGF-beta mediated signaling.

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)

Brefeldin A disrupts Golgi apparatus function. By inhibiting protein transport from the ER to the Golgi apparatus, it may indirectly reduce the stability and functionality of proteins such as PAPD1 that rely on proper post-translational processing.

U-0126

109511-58-2sc-222395
sc-222395A
1 mg
5 mg
$64.00
$246.00
136
(2)

U0126 is an inhibitor of both MEK1 and MEK2. Similar to PD98059, it disrupts the MAPK/ERK pathway and could lead to decreased expression of genes such as PAPD1 if they are regulated by ERK signaling.