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.
Proxyfan oxalate是高亲和性 H3 配体。
MorePSB 0474是活性的,选择性 P2Y6 激动剂。
MorePSB 0739是高活性的 P2Y12 受体拮抗剂。
MoreProstaglandin E2是主要的内源性前列腺素(prostanoid)。
MoreProstaglandin F2α是天然前列腺素(prostanoid) 活性血管收缩剂 (vasoconstrictor)。
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