Potassium Channel
potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms. They form potassium-selective pores that span cell membranes. Furthermore potassium channels are found in most cell types and control a wide variety of cell functions. These channels act to set or reset the resting potential in many cells. In excitable cells, such as neurons, the delayed counterflow of potassium ions shapes the action potential.
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Rolipram(SB95952; ZK62711)是磷酸二酯酶PDE4选择性抑制剂，对PDE4B和PDE4D的IC50分别为130nM和240 nM。
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R428是Axl抑制剂，IC50为14 nM。
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Cabozantinib (XL184, BMS-907351)是一种有效的VEGFR2抑制剂，在无细胞试验中IC50为0.035 nM，也能有效抑制c-Met、 Ret、 Kit、Flt-1/3/4、Tie2和AXL，IC50分别为1.3 nM，4 nM，4.6 nM，12 nM/11.3 nM/6 nM，14.3 nM 和 7 nM。
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TRAM-34是中电导的钙激活的钾离子通道（KCa3.1），Kd为20 nM，不抑制细胞色素P450。
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E-4031阻断ATP敏感性钾通道，是抗心律失常剂。
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