Date published: 2026-3-3

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GRIN1 Activators

GRIN1 Activators are a class of chemicals that primarily influence the activity of the GRIN1 protein, a subunit of the NMDA receptor, either directly or indirectly. These compounds are engaged in various mechanisms that lead to the increase of GRIN1 functional activity. Cyclothiazide and D-Cycloserine, for instance, bind to the allosteric site or the glycine site of the NMDA receptor respectively, modulating receptor activity and enhancing GRIN1 function. Similarly, Spermidine, an endogenous polyamine, potentiates NMDA receptor function by binding to a distinct site within the receptor-channel complex.

This multiplicity of mechanisms among GRIN1 Activators exemplifies the complex regulatory network that modulates GRIN1 protein function. Each compound influences the NMDA receptor and GRIN1 function in its unique way, reflecting the intricate interplay of biochemical and cellular pathways at play. All these compounds, despite their varied modes of action, lead to the common outcome of enhancing GRIN1 activity, underscoring their significance in understanding the functional regulation of this key protein.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Cyclothiazide

2259-96-3sc-202560
sc-202560A
10 mg
50 mg
$107.00
$227.00
3
(1)

Cyclothiazide is a potent activator of the NMDA receptor (of which GRIN1 is a subunit) by preventing desensitization. It binds to the allosteric site of the AMPA receptor, enhancing glutamate-induced ion channel opening. This increases the influx of Ca2+ ions, indirectly enhancing GRIN1 activation.

D-Cycloserine

68-41-7sc-221470
sc-221470A
sc-221470B
sc-221470C
200 mg
1 g
5 g
25 g
$28.00
$77.00
$142.00
$530.00
4
(0)

D-Cycloserine is a partial agonist of the NMDA receptor. It binds to the glycine site of the NMDA receptor, positively modulating the receptor function, hence enhancing GRIN1 activity.

Spermidine

124-20-9sc-215900
sc-215900B
sc-215900A
1 g
25 g
5 g
$57.00
$607.00
$176.00
(2)

Spermidine is a polyamine that can potentiate NMDA receptor function, therefore enhancing GRIN1 activity. It acts by binding to a site located within the NMDA receptor-channel complex, distinct from the glutamate and glycine binding sites.

Memantine hydrochloride

41100-52-1sc-203628
50 mg
$69.00
4
(2)

Memantine is a noncompetitive NMDA receptor antagonist. It binds to the ion channel of the receptor, resulting in the blockage of ion passage. This blockage subsequently enhances GRIN1 activity by upregulating the expression of the receptor as a compensatory response.

Agmatine sulfate

2482-00-0sc-202920
sc-202920A
100 mg
500 mg
$70.00
$182.00
(0)

Agmatine is an endogenous agonist of the NMDA receptor. It binds to the ionotropic glutamate receptors as well as to a specific site on NMDA receptors, enhancing receptor function and, in turn, GRIN1 activity.

Homocysteine

6027-13-0sc-507315
250 mg
$195.00
(0)

Homocysteine is an endogenous partial agonist of the NMDA receptor. It enhances the receptor function by binding to the glycine site, leading to increased activation of GRIN1.