Date published: 2026-1-23

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eIF3θ Activators

eIF3θ activators represent a diverse array of chemicals that intricately modulate the activity of eIF3θ, a key component of the eIF3 complex involved in translation initiation. One notable indirect activator is Rapamycin, which inhibits mTOR, a central regulator of protein synthesis. By disrupting the mTOR pathway, Rapamycin indirectly activates eIF3θ, influencing translation initiation processes. AICAR stimulates eIF3θ indirectly by activating AMPK, a cellular energy sensor. This activation influences the AMPK/mTOR signaling axis, leading to eIF3θ activation and impacting translation initiation processes. Salubrinal, another indirect activator, prevents ER stress-induced dephosphorylation of eIF2α, indirectly activating eIF3θ through the unfolded protein response (UPR) pathway.

Direct eIF3θ activation is observed with chemicals like N6-Benzyladenosine, which promotes phosphorylation of eIF3θ. This direct activation modulates translation initiation processes, highlighting the specificity of chemical control over eIF3θ activity. Compounds such as 4EGI-1 disrupt the interaction between eIF4E and 4E-BP1, indirectly activating eIF3θ by influencing the eIF4E-mediated translation initiation pathway. ISRIB, a unique activator, targets the integrated stress response (ISR), indirectly activating eIF3θ by modulating the phosphorylation status of eIF2α. Collectively, these activators offer a comprehensive toolkit for researchers to selectively modulate eIF3θ activity, providing valuable insights into the intricate regulation of translation initiation processes within the cellular context.

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Rapamycin

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

Rapamycin activates eIF3θ indirectly by inhibiting mTOR, a key regulator of protein synthesis. By blocking mTOR, Rapamycin modulates the mTOR signaling pathway, leading to eIF3θ activation and subsequently influencing translation initiation.

AICAR

2627-69-2sc-200659
sc-200659A
sc-200659B
50 mg
250 mg
1 g
$65.00
$280.00
$400.00
48
(2)

AICAR activates eIF3θ indirectly by stimulating AMPK, a cellular energy sensor. AMPK activation influences the AMPK/mTOR signaling axis, ultimately leading to eIF3θ activation and impacting translation initiation processes.

Salubrinal

405060-95-9sc-202332
sc-202332A
1 mg
5 mg
$34.00
$104.00
87
(2)

Salubrinal activates eIF3θ indirectly by inhibiting ER stress-induced dephosphorylation of eIF2α. By preventing eIF2α dephosphorylation, Salubrinal influences the unfolded protein response (UPR), indirectly activating eIF3θ and regulating translation initiation.

Metformin

657-24-9sc-507370
10 mg
$79.00
2
(0)

Metformin activates eIF3θ indirectly through AMPK stimulation. By activating AMPK, Metformin modulates the AMPK/mTOR signaling axis, leading to eIF3θ activation and influencing translation initiation processes.

eIF4E/eIF4G Interaction Inhibitor, 4EGI-1

315706-13-9sc-202597
10 mg
$265.00
14
(1)

4EGI-1 activates eIF3θ indirectly by disrupting the interaction between eIF4E and 4E-BP1. Through this disruption, 4EGI-1 influences the eIF4E-mediated translation initiation pathway, indirectly activating eIF3θ and impacting overall protein synthesis.

ISRIB

1597403-47-8sc-488404
10 mg
$300.00
1
(0)

ISRIB activates eIF3θ indirectly by targeting the integrated stress response (ISR). By inhibiting the ISR, ISRIB modulates the phosphorylation status of eIF2α and indirectly activates eIF3θ, influencing translation initiation processes.

Nilotinib

641571-10-0sc-202245
sc-202245A
10 mg
25 mg
$209.00
$413.00
9
(1)

Nilotinib activates eIF3θ indirectly by inhibiting c-Abl kinase. Through c-Abl inhibition, Nilotinib influences the c-Abl/mTOR signaling axis, indirectly activating eIF3θ and impacting translation initiation processes.

Pimozide

2062-78-4sc-203662
100 mg
$104.00
3
(1)

Pimozide activates eIF3θ indirectly by inhibiting Akt/mTOR signaling. By blocking Akt, Pimozide modulates the Akt/mTOR pathway, leading to eIF3θ activation and subsequently influencing translation initiation.

Deferoxamine mesylate

138-14-7sc-203331
sc-203331A
sc-203331B
sc-203331C
sc-203331D
1 g
5 g
10 g
50 g
100 g
$255.00
$1060.00
$2923.00
$4392.00
$8333.00
19
(1)

Deferoxamine activates eIF3θ indirectly by stabilizing hypoxia-inducible factor 1-alpha (HIF-1α). Through HIF-1α stabilization, Deferoxamine influences the mTOR/HIF-1α signaling axis, indirectly activating eIF3θ and impacting translation initiation processes.

Berberine

2086-83-1sc-507337
250 mg
$92.00
1
(0)

Berberine activates eIF3θ indirectly by modulating AMPK signaling. Through AMPK activation, Berberine influences the AMPK/mTOR pathway, leading to eIF3θ activation and subsequently impacting translation initiation processes.