Date published: 2026-5-30

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LSm4 Inhibitors

LSm4 inhibitors encompass a diverse range of compounds largely anchored in the overarching realm of RNA metabolism, especially focusing on RNA polymerase activity and splicing. α-amanitin, Actinomycin D, DRB, and Cordycepin specifically inhibit RNA polymerase or truncate the ATP-dependent elongation process, which can subsequently impact the broader roles LSm4 plays in mRNA decay. Such inhibitions resonate through RNA metabolism, thereby indirectly affecting the operational scope of LSm4.

In a distinct subset, Pladienolide B, Spliceostatin A, Herboxidiene, Isoginkgetin, and Meayamycin B target the splicing machinery. Given that LSm4 is implicated in the splicing mechanism, inhibition of this process can disrupt the efficiency and specificity of RNA splicing events where LSm4 might have a role. It is worth noting that while these compounds do not target LSm4 directly, their modulation of the associated pathways or processes delineates a strategy to understand LSm4's functions better.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

α-Amanitin

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

RNA polymerase II inhibitor, affecting overall RNA metabolism which can indirectly impact LSm4 functions.

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)

Intercalates DNA and inhibits RNA synthesis, influencing LSm4 indirectly.

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)

Inhibits RNA polymerase II, potentially affecting LSm4-associated processes.

Cordycepin

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

Truncated ATP analogue, inhibits mRNA elongation and can indirectly affect LSm4 functions.

Flavopiridol

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

CDK9 inhibitor that blocks RNA polymerase II, indirectly affecting LSm4.

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)

Spliceosome inhibitor, impacting splicing processes associated with LSm4.

Spliceostatin A

391611-36-2sc-507481
1 mg
$1800.00
(0)

Spliceosome inhibitor, altering LSm4-associated RNA splicing.

Herboxidiene

142861-00-5sc-506378
1 mg
$1009.00
(0)

Another spliceosome inhibitor, impacting LSm4 activities in splicing.

Isoginkgetin

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

Inhibits splicing, affecting LSm4 functions.