Target intelligence / Profile preview

Potassium Channel Protein (Neuronal)

Molecular classification: Ion channel, Potassium channel, Voltage-gated potassium channel (Kv), Calcium-activated potassium channel, Inwardly rectifying potassium channel, Tandem pore domain potassium channel

Overview

Potassium channel proteins are integral membrane proteins that form potassium-selective pores across cell membranes. In neurons, these channels are crucial for controlling the flow of potassium ions (K+) in and out of the cell, which is essential for generating and shaping electrical signals such as action potentials. They are among the most widely distributed ion channels in biology. Their malfunction can lead to neurological disorders or diseases such as epilepsy or arrhythmias.

Mechanism of action

Facilitated diffusion of K+ ions; Gating via voltage or calcium

Biological functions

Ion transportRegulation of membrane potentialShaping action potentialsRegulation of neuronal excitabilityNeurotransmitter releaseSynaptic plasticitySetting/resetting resting potential

Disease associations

EpilepsyAtaxiaCardiac arrhythmiaNeurological disorders

Safety considerations

Off-target effects due to subtype promiscuityPotential for drug-induced arrhythmiasNeurological side effects

Interacting drugs

Dendrotoxin

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