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.
Rilpivirine (利匹韦林; R278474, TMC 278) 是HIV的非核苷逆转录酶抑制剂。
MoreEW-7197是一种高效的,选择性的,口服生物有效的TGF-β receptor ALK4/ALK5抑制剂,IC50分别为13 nM 和 11 nM。
MoreDofetilide是III型抗心律失常药,能阻断钾离子通道。
MoreAbacavir sulfate是一种常用的核苷类似物,具有抗HIV-1病毒活性。Abacavir是一种鸟嘌呤类似物,它的靶点是病毒的反转录酶。
MoreTAK-715是一种p38 MAPK抑制剂,作用于p38α,IC50为7.1 nM,作用于p38α比作用于p38β选择性高28倍多,对p38γ/δ, JNK1, ERK1, IKKβ, MEKK1和TAK1没有抑制作用。
More