Description: TRAM-34 (Triarylmethane-34) (Kd=20 nM), an effective and specific inhibitor of the intermediate-conductance Ca2+-activated K+ channel (IKCa1, KCa3.1), does not block cytochrome P450. The selective activity of TRAM-34(TRAM 34) is 200 to 1500-fold than other ion channels. Target: Potassium Channel,...

TRAM-34 is a membrane-permeable inhibitor of the intermediate-conductance calcium-activated potassium channel (IKCa1/KCa3.1). It blocks IKCa1 (Kds = 20 and 25 nM for the cloned and native channel in COS-7 cells and human T lymphocytes, respectively) with 200- to 1,500-fold selectivity for IKCa1 over Kv (Kv1.1-Kv1.5,...