Phrixotoxin 2 selectively blocks the KV 4.2 and KV 4.3 channels, demonstrating high specificity in its interaction with these voltage-gated ion channels [1].

Vm24-toxin, a peptide toxin isolated from the Mexican scorpion Vaejovis mexicanus smithi, serves as an inhibitor of the Kv1.3 potassium channel [1].

Ssm Spooky Toxin, derived from Scolopendra mutilans, exhibits potent lethality affecting both hematological and respiratory systems primarily through the inhibition of KCNQ (voltage-gated potassium channel family 7) channels. It demonstrates IC50 values of 2.8 μM for Kv7.4, 5.26 μM for Kv1.3, and 0.1-0.3 M for the Shal channel, respectively. Additionally, this toxin impedes cytokine production by selectively targeting the KV1.3 channel in T cells and is crucial for the centipede's circulatory system functions [1] [2] [3].

UK 78282 hydrochloride, a novel potent and selective Kv1.3 blocker.UK 78282 hydrochloride inhibits Kv1.3 voltage-gated potassium channels and suppresses human T cell activation.

TASK-1-IN-1 is a potent and selective inhibitor of TASK-1 (Potassium Channel) (IC50: 148 nM).TASK-1-IN-1 has a reduced inhibitory effect on the TASK-3 channel with an IC50 of 1750 nM.TASK-1-IN-1 has anticancer effects.