Date published: 2026-5-30

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V1RI1 Activators

Chemical activators of V1RI1 can initiate a series of intracellular changes that ultimately lead to the protein's activation. Acetylcholine, for instance, engages nicotinic and muscarinic receptors, thus increasing intracellular calcium levels which are known to activate V1RI1. Similarly, nicotine directly binds to nicotinic acetylcholine receptors, causing an influx of calcium ions that can activate the protein. Histamine operates through its own set of G-protein-coupled receptors, which results in the release of calcium from intracellular stores, a process that can activate V1RI1. Serotonin works via its receptors to increase cyclic AMP (cAMP), activating protein kinase A (PKA), which may then phosphorylate and activate V1RI1. Glutamate, an excitatory neurotransmitter, and kainic acid both act on their respective receptors to increase intracellular calcium, a key mediator in the activation of V1RI1.

Further chemical interactions with V1RI1 involve forskolin, which boosts cAMP levels by targeting adenylyl cyclase, consequently activating PKA that can lead to the activation of V1RI1. Ionomycin acts as a calcium ionophore, facilitating the increase of intracellular calcium that can trigger V1RI1 activation. Phorbol 12-myristate 13-acetate (PMA) activates protein kinase C (PKC), which then may phosphorylate and activate V1RI1. Similarly, sodium fluoride's activation of G-proteins sets off a cascade that can result in the activation of V1RI1. Direct supplementation of intracellular calcium with calcium chloride also serves as a method to activate V1RI1. Lastly, capsaicin, by activating TRPV1 receptors, causes an increase in intracellular calcium levels, which can also lead to the activation of V1RI1. Each chemical, through its unique mechanism, contributes to the cellular events leading to the activation of V1RI1.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Histamine, free base

51-45-6sc-204000
sc-204000A
sc-204000B
1 g
5 g
25 g
$94.00
$283.00
$988.00
7
(1)

Histamine binds to G-protein-coupled histamine receptors, initiating an intracellular signaling cascade, resulting in the release of calcium from intracellular stores. This increase in intracellular calcium can activate V1RI1.

Serotonin hydrochloride

153-98-0sc-201146
sc-201146A
100 mg
1 g
$118.00
$187.00
15
(1)

Serotonin interacts with its G-protein-coupled receptors, leading to an increase in cyclic AMP (cAMP). The cAMP signaling pathway can activate protein kinase A (PKA), which is known to phosphorylate various proteins and could lead to the activation of V1RI1.

L-Glutamic Acid

56-86-0sc-394004
sc-394004A
10 g
100 g
$297.00
$577.00
(0)

Glutamate is an excitatory neurotransmitter that activates glutamate receptors, causing an influx of calcium ions. This calcium signaling is intimately connected to the activation of V1RI1 as it responds to changes in intracellular calcium levels.

Kainic acid

487-79-6sc-200454
sc-200454A
sc-200454B
sc-200454C
sc-200454D
5 mg
25 mg
100 mg
1 g
5 g
$87.00
$370.00
$1377.00
$7803.00
$24970.00
12
(1)

Kainic acid acts as an agonist at the kainate class of glutamate receptors, leading to an influx of calcium ions. This influx is a component of the signaling pathways that can activate V1RI1.

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 by transporting calcium across the cell membrane. The resultant increase in intracellular calcium can lead to the activation of V1RI1.

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)

PMA activates protein kinase C (PKC), which phosphorylates target proteins. PKC-mediated phosphorylation can lead to the activation of V1RI1.

Sodium Fluoride

7681-49-4sc-24988A
sc-24988
sc-24988B
5 g
100 g
500 g
$40.00
$46.00
$100.00
26
(4)

Sodium fluoride activates G-proteins that are involved in intracellular signaling pathways. Activation of these G-proteins can lead to the activation of downstream effectors, ultimately resulting in the activation of V1RI1.

Calcium chloride anhydrous

10043-52-4sc-207392
sc-207392A
100 g
500 g
$66.00
$262.00
1
(1)

Calcium chloride directly increases intracellular calcium levels, which can activate V1RI1 through calcium-responsive signaling pathways.

Capsaicin

404-86-4sc-3577
sc-3577C
sc-3577D
sc-3577A
50 mg
250 mg
500 mg
1 g
$96.00
$160.00
$240.00
$405.00
26
(1)

Capsaicin activates the transient receptor potential vanilloid 1 (TRPV1) receptor, which is a calcium-permeable channel, leading to an increase in intracellular calcium concentration. This rise in calcium levels can activate V1RI1 as part of the calcium-dependent signaling pathways.