Date published: 2026-5-30

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Vmn1r128 Activators

Vmn1r128 activators enhance the functional activity of vomeronasal 1 receptor 128 through various biochemical and cellular pathways. Compounds like L-Arginine and Sodium nitroprusside raise nitric oxide levels, which in turn activate guanylyl cyclase. The resultant increase in cGMP levels enhances vomeronasal 1 receptor 128 activity by facilitating cGMP-dependent protein kinase signaling. Phosphodiesterase inhibitors such as Sildenafil and Zaprinast maintain elevated cGMP levels, which further support the activity of vomeronasal 1 receptor 128 through similar pathways. Caffeine, by inhibiting phosphodiesterase enzymes, amplifies the effects of cAMP and cGMP, thereby indirectly enhancing the activity of the receptor through increased PKA and PKG activity. Forskolin and Isoproterenol function by elevating cAMP levels, which activate PKA, potentially leading to thephosphorylation of proteins that could be part of the signaling cascade associated with vomeronasal 1 receptor 128, thus enhancing its functional activity.

Calcium signaling modulators such as A23187 (Calcimycin) and BAPTA-AM manipulate intracellular calcium levels, which is crucial for the activation of calcium/calmodulin-dependent protein kinases that can influence vomeronasal 1 receptor 128 activity. A23187 increases calcium influx, while BAPTA-AM, after hydrolysis, binds calcium and could induce compensatory mechanisms that enhance calcium signaling. Niflumic acid, by inhibiting chloride channels, alters cellular ionic balance, potentially triggering signaling cascades that culminate in the activation of vomeronasal 1 receptor 128. Nicotine engages with nicotinic acetylcholine receptors to promote depolarization and an increase in intracellular calcium, another route through which vomeronasal 1 receptor 128 activity can be enhanced.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

L-Arginine

74-79-3sc-391657B
sc-391657
sc-391657A
sc-391657C
sc-391657D
5 g
25 g
100 g
500 g
1 kg
$20.00
$31.00
$61.00
$219.00
$352.00
2
(0)

L-Arginine serves as a substrate for nitric oxide synthase, which leads to the production of nitric oxide, a diffusible second messenger that can increase the activity of guanylyl cyclase. Elevated cGMP levels, in turn, can enhance vomeronasal 1 receptor 128 signaling by influencing cGMP-dependent protein kinases.

Sodium nitroprusside dihydrate

13755-38-9sc-203395
sc-203395A
sc-203395B
1 g
5 g
100 g
$43.00
$85.00
$158.00
7
(1)

Sodium nitroprusside releases nitric oxide, which activates guanylyl cyclase, resulting in increased cGMP levels that can indirectly enhance the activity of vomeronasal 1 receptor 128 through cGMP-dependent protein kinases.

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)

A23187 is an ionophore that increases intracellular calcium levels, which can activate calcium/calmodulin-dependent protein kinases, potentially enhancing the activity of vomeronasal 1 receptor 128 through calcium-dependent signaling pathways.

IBMX

28822-58-4sc-201188
sc-201188B
sc-201188A
200 mg
500 mg
1 g
$260.00
$350.00
$500.00
34
(1)

IBMX is a nonspecific inhibitor of phosphodiesterases that elevates cAMP and cGMP by preventing their degradation, leading to an enhanced activity of PKA and PKG which can indirectly increase vomeronasal 1 receptor 128 functional activity.

BAPTA/AM

126150-97-8sc-202488
sc-202488A
25 mg
100 mg
$138.00
$458.00
61
(2)

BAPTA-AM is a cell-permeable calcium chelator that, upon hydrolysis inside the cell, selectively binds to calcium. This can lead to compensatory cellular mechanisms that enhance calcium influx, potentially increasing vomeronasal 1 receptor 128 activity.

Isoproterenol Hydrochloride

51-30-9sc-202188
sc-202188A
100 mg
500 mg
$28.00
$38.00
5
(0)

Isoproterenol is a non-selective beta-adrenergic agonist that increases cAMP levels in the cell by activating adenylate cyclase, which can enhance vomeronasal 1 receptor 128 signaling by activating PKA and subsequent phosphorylation of associated proteins.

Zaprinast (M&B 22948)

37762-06-4sc-201206
sc-201206A
25 mg
100 mg
$105.00
$250.00
8
(2)

Zaprinast inhibits phosphodiesterase 5, leading to an increase in cGMP levels that can enhance signaling through cGMP-dependent protein kinases, indirectly increasing vomeronasal 1 receptor 128 activity.

Caffeine

58-08-2sc-202514
sc-202514A
sc-202514B
sc-202514C
sc-202514D
50 g
100 g
250 g
1 kg
5 kg
$33.00
$67.00
$97.00
$192.00
$775.00
13
(1)

Caffeine is a phosphodiesterase inhibitor, which can increase intracellular cAMP and cGMP by preventing their breakdown, thereby enhancing PKA and PKG activity which can indirectly activate vomeronasal 1 receptor 128.

Niflumic acid

4394-00-7sc-204820
5 g
$32.00
3
(1)

Niflumic acid is a chloride channel blocker that can alter membrane potential and cellular ionic balance, potentially leading to compensatory mechanisms that enhance calcium signaling and increase vomeronasal 1 receptor 128 activity.