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.
PD173074是一种有效的FGFR1抑制剂,IC50约为25 nM,也能抑制VEGFR2,IC50为100-200 nM,作用于FGFR1比作用于PDGFR和c-Src选择性高1000倍左右。
MoreAfatinib (BIBW2992)是一种不可逆EGFR/HER2抑制剂,对EGFR(wt), EGFR(L858R), EGFR(L858R/T790M)和HER2均有抑制作用,IC50分别为0.5 nM,0.4 nM,10 nM和14 nM;用于Gefitinib抗性的突变型EGFR (L858R-T790M )时,活性增强100倍。
MoreMaraviroc是一种趋化因子受体CCR5抑制剂,作用于MIP-1α, MIP-1β和RANTES 时,IC50分别为3.3 nM, 7.2 nM和5.2 nM。
MoreCYT387是一种ATP竞争性JAK1/JAK2抑制剂,IC50为11 nM/18 nM,比作用于JAK3选择性约高10倍左右。
MoreLY364947(HTS466284)是TGF(beta)R-I高效ATP竞争性抑制剂,IC50值为59nM,对TGF(beta)R-II的抑制活性弱7倍。
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