Date published: 2026-4-1

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A530099J19Rik Activators

Chemical activators of G protein-coupled receptor 141B (GPR141B) include a range of compounds that stimulate various receptors, leading to downstream signaling events that result in the activation of GPR141B. Isoproterenol, a synthetic catecholamine, engages adrenergic receptors, which are known to interact with GPR141B through G protein signaling pathways. This interaction typically results in an elevation of intracellular cyclic AMP, a secondary messenger crucial for GPR141B activation. Similarly, epinephrine and norepinephrine, both endogenous catecholamines, bind to adrenergic receptors, triggering a cascade of G protein-mediated events that elevate cyclic AMP and activate GPR141B. Dopamine, another neurotransmitter, activates dopamine receptors and, through G protein signaling, increases cyclic AMP, subsequently activating GPR141B.

Furthermore, histamine, which acts on histamine receptors, and acetylcholine, acting through muscarinic receptors, can both stimulate G protein-mediated pathways, influencing the levels of intracellular calcium and cyclic AMP. These changes in cellular signaling molecules are vital for the activation of GPR141B. Serotonin, engaging serotonin receptors, and angiotensin II, interacting with angiotensin receptors, both initiate G protein signaling that also leads to increased cyclic AMP or calcium levels, contributing to GPR141B activation. Glucagon and adenosine, through their respective receptors, further amplify cyclic AMP production. This common signaling molecule is again linked to the activation of GPR141B. Lastly, oxytocin and bradykinin, via their own specific receptors, trigger G protein-coupled signaling pathways that culminate in increased intracellular calcium levels, a key step in the functional activation of GPR141B. Each of these chemicals, through their unique receptor interactions, converges on the pivotal signaling pathways that promote the activation of GPR141B.

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Isoproterenol Hydrochloride

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

Isoproterenol is a synthetic catecholamine that activates adrenergic receptors, which can lead to the activation of G protein-coupled receptor 141B (GPR141B) through G protein signaling pathways, ultimately resulting in increased intracellular cyclic AMP and downstream signaling events.

(−)-Epinephrine

51-43-4sc-205674
sc-205674A
sc-205674B
sc-205674C
sc-205674D
1 g
5 g
10 g
100 g
1 kg
$41.00
$104.00
$201.00
$1774.00
$16500.00
(1)

Epinephrine binds to and activates adrenergic receptors that can couple to GPR141B, stimulating G protein-mediated signaling cascades that increase intracellular cyclic AMP levels, thereby promoting the activation of GPR141B.

L-Noradrenaline

51-41-2sc-357366
sc-357366A
1 g
5 g
$326.00
$485.00
3
(0)

Norepinephrine is an endogenous neurotransmitter that activates adrenergic receptors which may couple to GPR141B, leading to G protein activation, an increase in cyclic AMP, and subsequent activation of GPR141B.

Dopamine

51-61-6sc-507336
1 g
$290.00
(0)

Dopamine acts on dopamine receptors that can engage G protein signaling pathways linked to GPR141B, resulting in increased cyclic AMP and the activation of GPR141B.

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 interacts with histamine receptors that can be associated with GPR141B activation through G protein-mediated signaling, influencing intracellular calcium levels and cyclic AMP, which contribute to activating GPR141B.

Serotonin hydrochloride

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

Serotonin engages serotonin receptors, which can lead to G protein activation and increased cyclic AMP or calcium signaling, both of which are necessary for GPR141B activation.

Angiotensin II, Human

4474-91-3sc-363643
sc-363643A
sc-363643B
sc-363643C
1 mg
5 mg
25 mg
100 mg
$51.00
$100.00
$310.00
$690.00
3
(1)

Angiotensin II, through its interaction with angiotensin receptors, can activate G proteins and signaling pathways that increase intracellular calcium, which can contribute to the activation of GPR141B.

Adenosine

58-61-7sc-291838
sc-291838A
sc-291838B
sc-291838C
sc-291838D
sc-291838E
sc-291838F
1 g
5 g
100 g
250 g
1 kg
5 kg
10 kg
$34.00
$48.00
$300.00
$572.00
$1040.00
$2601.00
$4682.00
1
(0)

Adenosine activates adenosine receptors, which can increase intracellular cyclic AMP through G protein signaling, thereby activating GPR141B.

Oxytocin acetate salt

50-56-6sc-279938
sc-279938A
sc-279938B
sc-279938C
sc-279938D
sc-279938E
1 mg
5 mg
25 mg
100 mg
250 mg
1 g
$60.00
$180.00
$337.00
$663.00
$969.00
$1836.00
4
(1)

Oxytocin binds to oxytocin receptors that can activate G protein-coupled signaling pathways, increasing intracellular calcium and potentially activating GPR141B.

Bradykinin

58-82-2sc-507311
5 mg
$110.00
(0)

Bradykinin activates bradykinin receptors, which can lead to G protein-mediated signaling cascades involving increased intracellular calcium and the subsequent activation of GPR141B.