Date published: 2026-4-1

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IZUMO4 Activators

IZUMO4 can facilitate its role in mediating cellular adhesion and fusion events, particularly during fertilization processes. Phorbol 12-myristate 13-acetate, for instance, activates protein kinase C (PKC), which phosphorylates various substrates, possibly leading to signaling cascades that involve IZUMO4. Concurrently, Forskolin elevates cyclic AMP levels, which enhances the protein kinase A (PKA) pathway, potentially resulting in phosphorylation of proteins that interact with IZUMO4. Ionomycin, by increasing intracellular calcium, may activate calcium-dependent protein kinases, such as calmodulin-dependent kinase, that could phosphorylate substrates to promote IZUMO4-mediated cell adhesion or fusion. Similarly, Thapsigargin raises intracellular calcium by inhibiting the SERCA pump, which could trigger calcium-dependent signaling pathways enhancing IZUMO4 function.

Retinoic acid influences gene expression through its receptors, possibly leading to the upregulation of proteins that work with IZUMO4, while Epidermal Growth Factor (EGF) activates its receptor to initiate signaling cascades like MAPK/ERK, potentially influencing IZUMO4 activity. Diacylglycerol, serving as a secondary messenger activating PKC, can modulate pathways that include IZUMO4. Calyculin A and Okadaic acid both inhibit protein phosphatases 1 and 2A, maintaining the phosphorylation of proteins within pathways involving IZUMO4. Anisomycin activates stress-activated protein kinases, such as JNK, which may phosphorylate proteins that interact with IZUMO4, facilitating its functional role in cell fusion. Ouabain alters cellular ionic balance by inhibiting the Na+/K+-ATPase pump, which may activate signaling pathways involving IZUMO4. Lastly, Lithium chloride inhibits glycogen synthase kinase-3 (GSK-3), possibly leading to the activation of Wnt signaling pathway components, and inducing changes that support the functional activity of IZUMO4.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

PMA

16561-29-8sc-3576
sc-3576A
sc-3576B
sc-3576C
sc-3576D
1 mg
5 mg
10 mg
25 mg
100 mg
$41.00
$132.00
$214.00
$500.00
$948.00
119
(6)

Phorbol 12-myristate 13-acetate (PMA) activates protein kinase C (PKC) which can phosphorylate many substrates that can lead to activation of signaling cascades. Activation of PKC has been linked to the regulation of membrane fusion processes which IZUMO4 is involved in.

Ionomycin

56092-82-1sc-3592
sc-3592A
1 mg
5 mg
$78.00
$270.00
80
(4)

Ionomycin is a calcium ionophore that increases intracellular calcium levels, which can activate calcium-dependent protein kinases, such as calmodulin-dependent kinase, which may phosphorylate substrates that promote IZUMO4-mediated cell adhesion or fusion.

Thapsigargin

67526-95-8sc-24017
sc-24017A
1 mg
5 mg
$136.00
$446.00
114
(2)

Thapsigargin is a SERCA pump inhibitor that leads to increased intracellular calcium levels, potentially activating calcium-dependent signaling pathways that could enhance the function of IZUMO4 in processes like gamete recognition and fusion.

Retinoic Acid, all trans

302-79-4sc-200898
sc-200898A
sc-200898B
sc-200898C
500 mg
5 g
10 g
100 g
$66.00
$325.00
$587.00
$1018.00
28
(1)

Retinoic acid can regulate gene expression through its receptors which may lead to upregulation of proteins that interact with or are part of the cellular machinery IZUMO4 is involved in, thereby enhancing IZUMO4's functional activity in fertilization.

Calyculin A

101932-71-2sc-24000
sc-24000A
10 µg
100 µg
$163.00
$800.00
59
(3)

Calyculin A is an inhibitor of protein phosphatases 1 and 2A, preventing dephosphorylation of proteins, which can result in sustained activation of signaling pathways that include IZUMO4, potentially increasing its activity in sperm-egg recognition and binding.

Okadaic Acid

78111-17-8sc-3513
sc-3513A
sc-3513B
25 µg
100 µg
1 mg
$291.00
$530.00
$1800.00
78
(4)

Okadaic acid is another potent inhibitor of protein phosphatases 1 and 2A, which may lead to enhanced phosphorylation and activation of signaling pathways involving IZUMO4, promoting its function in fertilization.

Anisomycin

22862-76-6sc-3524
sc-3524A
5 mg
50 mg
$99.00
$259.00
36
(2)

Anisomycin is a protein synthesis inhibitor that can activate stress-activated protein kinases such as JNK, which may phosphorylate proteins that could interact with IZUMO4, potentially leading to activation of its function in cell fusion.

Ouabain-d3 (Major)

sc-478417
1 mg
$516.00
(0)

Ouabain is a Na+/K+-ATPase pump inhibitor that leads to alterations in cellular ionic balance, which can activate signal transduction pathways that may include proteins interacting with IZUMO4, thus potentially enhancing IZUMO4 activity in membrane fusion.

Lithium

7439-93-2sc-252954
50 g
$214.00
(0)

Lithium chloride inhibits glycogen synthase kinase-3 (GSK-3), which can lead to activation of Wnt signaling pathway components, potentially resulting in changes that enhance the activity of IZUMO4 in its role during fertilization.