Date published: 2025-12-24

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GABAA Rβ2 Inhibitors

GABAA Rβ2 inhibitors belong to a distinct chemical class that primarily targets a specific subtype of the gamma-aminobutyric acid type A (GABAA) receptor, namely the receptor subunit β2. The GABAA receptor is a vital component of the central nervous system, playing a pivotal role in mediating inhibitory neurotransmission. It is a ligand-gated ion channel that allows the influx of chloride ions, leading to membrane hyperpolarization and subsequent inhibition of neuronal activity. The β2 subunit is an integral part of this receptor complex, influencing its pharmacology, function, and localization. GABAA Rβ2 inhibitors act by modulating the activity of the GABAA receptor through their interaction with the β2 subunit. These compounds are characterized by their ability to bind to specific sites on the receptor, resulting in a reduction or attenuation of its function. This inhibition of GABAA Rβ2 function can have a significant impact on neuronal excitability and network dynamics, as it disrupts the balance between inhibitory and excitatory signaling in the brain.

Chemically, GABAA Rβ2 inhibitors encompass a diverse array of structures, often characterized by their ability to selectively interact with the β2 subunit. Through this interaction, these inhibitors can alter the conformational changes necessary for receptor activation in response to GABA binding. This class of compounds has garnered significant attention from researchers seeking to understand the intricate mechanisms of GABAA receptor modulation and its broader implications for neurological processes. The study of GABAA Rβ2 inhibitors has provided valuable insights into the complexity of neuronal communication and the delicate balance that underlies proper brain function. Understanding the specific interactions between these inhibitors and the GABAA receptor subunit β2 contributes to advancing the comprehension of neuronal circuits, neurotransmission, and the underlying pharmacological mechanisms that govern them.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Flumazenil (Ro 15-1788)

78755-81-4sc-200161
sc-200161A
25 mg
100 mg
$108.00
$363.00
10
(1)

Flumazenil was later found to possess some inhibitory effects on the GABA_A rβ2 subtype. It is primarily used to reverse the effects of benzodiazepine overdose.

Loreclezole hydrochloride

117857-45-1sc-204061
sc-204061A
1 mg
5 mg
$195.00
$849.00
(0)

This compound acts as a positive allosteric modulator of GABA_A receptors, including the β2 subtype. It enhances the inhibitory effects of GABA and was investigated for potential anticonvulsant and anxiolytic effects.

Furosemide

54-31-9sc-203961
50 mg
$40.00
(1)

Furosemide has been found to exert inhibitory effects on the GABA_A rβ2 subtype. It has been studied for its potential in modulating GABAergic transmission.

Etomidate

33125-97-2sc-203577
10 mg
$124.00
(0)

Etomidate acts as an inhibitor of GABA_A Rβ2 by targeting the modulatory site located near the interface of the β and α subunits. It stabilizes the receptor in a conformation that is less responsive to GABA, thus diminishing the opening frequency of the chloride channel and reducing inhibitory post-synaptic currents.

Ivermectin

70288-86-7sc-203609
sc-203609A
100 mg
1 g
$56.00
$75.00
2
(2)

Ivermectin inhibits GABA_A Rβ2 by binding to a site that is not directly related to the GABA binding domain, leading to a reduction in the chloride ion conductance. This interaction negatively influences the receptor's ability to undergo conformational changes necessary for channel opening in response to GABA, effectively diminishing the receptor's inhibitory function on neuronal activity.