Date published: 2026-5-4

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E2F-3 Activators

The chemical class of E2F-3 activators constitutes a diverse array of compounds strategically designed to modulate the activity of E2F-3, a pivotal transcription factor intricately involved in the regulation of the cell cycle. These activators can be broadly classified into two groups: those that directly interact with E2F-3 and those that exert their influence indirectly by targeting key cellular processes. Direct activators within this class encompass Palbociclib, Indirubin, Nutlin-3, Seliciclib, PD-0332991, R547, Roscovitine, NU6027, SCH 900776, LY294002, CAY10572, and GW843682X. Palbociclib and PD-0332991, identified as CDK4/6 inhibitors, indirectly activate E2F-3 by impeding cell cycle progression. This disruption results in the release of E2F-3 and enhances its transcriptional activity. Indirubin, functioning as a CDK inhibitor, disrupts cell cycle progression, impacting Rb phosphorylation, and consequently promotes E2F-3 activation. Nutlin-3, an MDM2 inhibitor, indirectly activates E2F-3 by stabilizing p53, ultimately leading to enhanced E2F-3 transcriptional activity.

The group of CDK inhibitors, including Seliciclib, Roscovitine, NU6027, CAY10572, and GW843682X, influences cell cycle progression by disrupting Rb phosphorylation. This disruption facilitates the release of E2F-3, consequently enhancing its transcriptional activity. R547, a selective inhibitor of Aurora kinase A, impacts mitotic signaling, influencing Rb phosphorylation, and promoting E2F-3 activation. SCH 900776, a CHK1 inhibitor, disrupts the DNA damage response, impacting Rb phosphorylation, and promoting the release of E2F-3. LY294002, a PI3K inhibitor, modulates the PI3K/Akt pathway, influencing Rb phosphorylation and thereby enhancing E2F-3 activity. This diverse array of compounds serves as valuable tools for researchers investigating the intricate regulatory mechanisms governing E2F-3 function.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Indirubin

479-41-4sc-201531
sc-201531A
5 mg
25 mg
$114.00
$525.00
4
(1)

Indirubin, a CDK inhibitor, indirectly activates E2F-3 by modulating cell cycle progression. Inhibition of CDKs disrupts the phosphorylation of Rb, facilitating the release of E2F-3 and enhancing its transcriptional activity. This indirect activation underscores the link between CDK-dependent signaling and E2F-3 function, providing insights into potential modulators of E2F-3 activity through the regulation of CDK activity.

Nutlin-3

548472-68-0sc-45061
sc-45061A
sc-45061B
1 mg
5 mg
25 mg
$62.00
$225.00
$779.00
24
(1)

Nutlin-3, a MDM2 inhibitor, indirectly activates E2F-3 by stabilizing p53. Stabilized p53 promotes the transcriptional activation of p21, leading to Rb hypophosphorylation and the release of E2F-3. This indirect activation reveals a connection between the p53 pathway and E2F-3 regulation, suggesting a potential strategy to modulate E2F-3 activity through the inhibition of MDM2.

SCH 900776

891494-63-6sc-364611
sc-364611A
5 mg
10 mg
$255.00
$338.00
(0)

SCH 900776, a selective inhibitor of CHK1, indirectly activates E2F-3 by influencing cell cycle progression. CHK1 inhibition disrupts the cell cycle checkpoint, impacting Rb phosphorylation and promoting the release of E2F-3. This indirect activation underscores the connection between the DNA damage response and E2F-3 regulation, providing insights into potential modulators of E2F-3 activity through the inhibition of CHK1.

PHA 767491 hydrochloride

942425-68-5sc-204187
sc-204187A
10 mg
50 mg
$198.00
$802.00
3
(2)

CAY10572, a potent and selective CDK2/5 inhibitor, indirectly activates E2F-3 by influencing cell cycle progression. CDK2/5 inhibition disrupts Rb phosphorylation, facilitating the release of E2F-3 and enhancing its transcriptional activity. This indirect activation highlights the connection between CDK-dependent signaling and E2F-3 function, providing insights into potential modulators of E2F-3 activity through the regulation of CDK2/5.

Polo-like Kinase Inhibitor III

660868-91-7sc-203202
500 µg
$109.00
1
(0)

GW843682X, a potent and selective CDK2/9 inhibitor, indirectly activates E2F-3 by influencing cell cycle progression. CDK2/9 inhibition disrupts Rb phosphorylation, facilitating the release of E2F-3 and enhancing its transcriptional activity. This indirect activation emphasizes the connection between CDK-dependent signaling and E2F-3 function, providing insights into potential modulators of E2F-3 activity through the regulation of CDK2/9.