Date published: 2026-2-22

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KIR2.1 Activators

KIR2.1, a vital component of the inward rectifier potassium channel family, has a defining role in the precise regulation of potassium ion movement across cellular membranes. The channel's behavior is modulated by several chemicals, each orchestrating a unique interaction. PIP2, or Phosphatidylinositol 4,5-bisphosphate, is particularly noteworthy, holding a reputation for bolstering the activity of many inward-rectifier potassium channels. This enhancement underscores the deep synergy between lipid molecules and channel proteins in cellular function.

Diving deeper into the chemical landscape, compounds like Chloroquine and Cilostazol offer additional layers of interaction. Chloroquine, although primarily known for other functions, can leave an imprint on KIR2.1 activity, offering a broad perspective on channel modulation. Metals, too, like Zinc, play their part, attesting to the intricate balance of metallic ions in channel function. Similarly, organic molecules like Spermine, Tertiapin-Q, and Nicorandil all intersect with KIR2.1, either by direct modulation or by providing a clearer understanding of its function. This rich mosaic of chemicals, ranging from simple ions to complex molecules, paints a vivid picture of the myriad ways KIR2.1 activity is fine-tuned within the cell.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Chloroquine

54-05-7sc-507304
250 mg
$69.00
2
(0)

Chloroquine has been observed to activate KIR2.1 channels, potentially by interacting with the channel's external or internal domains, thereby inducing a conformational change that increases channel conductance and potassium ion flow.

Zinc

7440-66-6sc-213177
100 g
$48.00
(0)

Zinc activates KIR2.1 by binding to specific sites on the channel, which may alter its electrical properties and increase potassium ion permeability, suggesting a direct influence on the channel's functional state and conductance.

Spermine

71-44-3sc-212953A
sc-212953
sc-212953B
sc-212953C
1 g
5 g
25 g
100 g
$61.00
$196.00
$277.00
$901.00
1
(0)

Spermine directly activates KIR2.1 channels by interacting with intracellular sites, inducing a conformational change that enhances the channel's open state probability, thereby facilitating the inward flow of potassium ions.

Cilostazol

73963-72-1sc-201182
sc-201182A
10 mg
50 mg
$109.00
$322.00
3
(1)

Cilostazol activates KIR2.1 channels possibly by binding to regulatory domains, leading to a conformational change that increases channel conductance, thereby promoting potassium ion transport and influencing cellular excitability.

Nicorandil

65141-46-0sc-200995
sc-200995B
sc-200995A
sc-200995C
50 mg
100 mg
250 mg
1 g
$57.00
$98.00
$240.00
$500.00
4
(1)

Nicorandil activates KIR2.1 channels by possibly interacting with regulatory components of the channel, leading to enhanced potassium conductance and demonstrating the compound's role in directly promoting channel opening and potassium ion permeability.