總結 |
KV1.3 belongs to theShakerfamily of voltage-dependent K+channels.The channel is widely expressed in the brain, lung and osteoclasts and in several cellpopulations of hematopoietic origin. It is in these cells (particularly T lymphocytes) thatKV1.3 function has centered a lot of attention. It was found that KV1.3 is the main channelResponsible for maintaining the resting potential in quiescent cells and regulating theCa2+signaling that is indispensable for normal T lymphocyte activation.1,2Based on the central role of Kv1.3 in regulating the initiation of an immune response,the channel has been recognized as a potential target for immunosuppressant drugs.1KV1.3 channels are potently inhibited by several venomous peptide toxins among themCharybdotoxin(#STC-325, 2.6 nM),Noxiustoxin(#STN-340, 1 nM),Kaliotoxin(#STK-370, 0.65 nM),Margatoxin(#STM-325, 0.05 nM),Agitoxin-1(#RTA-150, 1.7 nM),Agitoxin-2(#RTA-420, 0.004 nM),Hongotoxin-1(#RTH-400, 0.09 nM) andStichodactyla toxin(#RTS-400, 0.01 nM).3-7
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別名 |
Potassium voltage-gated channel subfamily A member 3, HGK5, HLK3, HPCN3, Voltage-gated K(+) channel HuKIII, Voltage-gated potassium channel subunit Kv13, KCNA3, HGK5
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