NS4591 is a modulator of calcium-activated potassium channels, specifically enhancing the activity of small conductance (SK) and intermediate conductance (IK) potassium channels. It significantly increases IK-mediated currents at approximately 45 nM and SK3-mediated currents at about 530 nM in whole-cell patch-clamp studies. NS4591 has been shown to inhibit action potentials induced by suprathreshold depolarizing pulses in acutely isolated bladder primary afferent neurons and reduces carbamylcholine-induced detrusor contraction in the rat bladder, indicating its sensitivity to apamin. This reagent is useful for studying the physiological roles of potassium channels in bladder function and neuronal excitability.
NS4591 is a modulator of calcium-activated potassium channels, specifically enhancing the activity of small conductance (SK) and intermediate conductance (IK) potassium channels. It significantly increases IK-mediated currents at approximately 45 nM and SK3-mediated currents at about 530 nM in whole-cell patch-clamp studies. NS4591 has been shown to inhibit action potentials induced by suprathreshold depolarizing pulses in acutely isolated bladder primary afferent neurons and reduces carbamylcholine-induced detrusor contraction in the rat bladder, indicating its sensitivity to apamin. This reagent is useful for studying the physiological roles of potassium channels in bladder function and neuronal excitability.
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