HTR3A pentamer:5HT transports Na+,K+,Ca2+
收藏reactome.org2025-01-09 收录
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The 5-hydroxytryptamine receptor (HTR3) family are members of the superfamily of ligand-gated ion channels (LGICs). Five receptors (HTR3A-E) can form a homopentamer (HTR3A) or heteropentamers (HTR3A with B, C, D or E) (Barrera et al. 2005, Niesler et al. 2007; reviews - Barnes et al. 2009, Wu et al. 2015). Binding of the neurotransmitter 5-hydroxytryptamine (5HT, serotonin) to the HTR3 pentamer opens the channel making it permeable to sodium, potassium, and calcium ions, which in turn leads to an excitatory response in neurons (Miyake et al. 1995, Davies et al. 1999).
5-羟色胺受体(HTR3)家族隶属于配体门控离子通道超家族(LGICs)。该家族包含五种受体(HTR3A-E),它们可以形成同源五聚体(HTR3A)或异源五聚体(HTR3A与B、C、D或E结合)(Barrera等,2005年,Niesler等,2007年;综述 - Barnes等,2009年,Wu等,2015年)。神经递质5-羟色胺(5HT,血清素)与HTR3五聚体的结合会开启通道,使其对钠、钾和钙离子具有通透性,进而导致神经元产生兴奋性反应(Miyake等,1995年,Davies等,1999年)。
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