Date published: 2026-4-1

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IZUMO2 Activators

IZUMO2 activators are chemicals that facilitate the sperm-egg fusion process by upregulating pathways involved in sperm maturation and function. These compounds could enhance the expression or functionality of IZUMO2 indirectly by creating a cellular environment that is conducive to fertilization. For example, cyclic AMP analogs can upregulate protein kinase A, an enzyme that phosphorylates various targets during sperm capacitation, leading to changes in sperm motility and the acrosome reaction.

Similarly, calcium ionophores directly increase intracellular calcium, a signal that is integral to the acrosome reaction and may be necessary for the proper positioning or function of IZUMO2 in the sperm membrane. Phosphodiesterase inhibitors, by preventing the breakdown of cAMP, support the maintenance of the capacitated state and could, therefore, sustain an environment where IZUMO2 activity is required. The bicarbonate ion serves as a natural modulator of the intracellular pH and cAMP levels in sperm, which are crucial for capacitation and may influence the IZUMO2 action.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

8-Bromo-cAMP

76939-46-3sc-201564
sc-201564A
10 mg
50 mg
$126.00
$328.00
30
(1)

A cAMP analog that can bypass the cellular receptors and directly activate protein kinase A (PKA), potentially facilitating the phosphorylation events necessary for sperm capacitation that may influence IZUMO2.

A23187

52665-69-7sc-3591
sc-3591B
sc-3591A
sc-3591C
1 mg
5 mg
10 mg
25 mg
$55.00
$131.00
$203.00
$317.00
23
(1)

By increasing intracellular Ca2+ levels, A23187 can induce the acrosome reaction, a step that might affect IZUMO2's positioning or function within the sperm membrane.

Forskolin

66575-29-9sc-3562
sc-3562A
sc-3562B
sc-3562C
sc-3562D
5 mg
50 mg
1 g
2 g
5 g
$78.00
$153.00
$740.00
$1413.00
$2091.00
73
(3)

Directly activates adenylate cyclase, leading to an increase in cAMP levels and activation of PKA. This activation may promote sperm capacitation and indirectly enhance IZUMO2 activity.

TPEN

16858-02-9sc-200131
100 mg
$130.00
10
(3)

A zinc chelator that can remove zinc ions from proteins and possibly affect the protein complex around IZUMO2, altering its function or stability.

Sodium bicarbonate

144-55-8sc-203271
sc-203271A
sc-203271B
sc-203271C
sc-203271D
25 g
500 g
1 kg
5 kg
25 kg
$21.00
$29.00
$43.00
$84.00
$697.00
1
(1)

As a physiological buffer, it raises intracellular pH and increases cAMP in sperm, which is required for capacitation, thereby potentially impacting IZUMO2.

Progesterone

57-83-0sc-296138A
sc-296138
sc-296138B
1 g
5 g
50 g
$20.00
$52.00
$298.00
3
(1)

Although primarily a hormone, synthetic progesterone can be considered a chemical that enhances sperm capacitation and the acrosome reaction, which may subsequently influence IZUMO2.

H-89 dihydrochloride

130964-39-5sc-3537
sc-3537A
1 mg
10 mg
$94.00
$186.00
71
(2)

While an inhibitor, it can be used to indirectly infer the involvement of PKA in capacitation by observing the downstream effects of PKA blockade, which may affect the state of IZUMO2.

Dibutyryl-cAMP

16980-89-5sc-201567
sc-201567A
sc-201567B
sc-201567C
20 mg
100 mg
500 mg
10 g
$47.00
$136.00
$492.00
$4552.00
74
(7)

A cell-permeable cAMP analog that can activate PKA, leading to the promotion of capacitation-related pathways that could indirectly enhance IZUMO2's activity.

Mibefradil dihydrochloride

116666-63-8sc-204083
sc-204083A
10 mg
50 mg
$213.00
$865.00
4
(1)

As a T-type calcium channel blocker, it could affect calcium fluxes during sperm capacitation and acrosome reaction, indirectly influencing IZUMO2 activity.