In some cases, receptor activation caused by ligand binding to a receptor is directly coupled to the cell's response to the ligand. For example, the neurotransmitter GABA can activate a cell surface receptor that is part of an ion channel. GABA binding to a GABAA receptor on a neuron opens a chloride-selective ion channel that is part of the receptor. GABAA receptor activation allows negatively charged chloride ions to move into the neuron, which inhibits the ability of the neuron to produce action potentials.
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MoreTAK-733是MEK变构抑制剂,对MEK1的IC50为3.2 nM,而对Abl1,AKT3,c-RAF,CamK1,CDK2和c-Met则无活性。
MoreLopinavir是一种有效的HIV protease(HIV蛋白酶)抑制剂, Ki为1.3 pM。
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