Serotonin 5-HT4 receptor neurons are neurons that express the 5-HT4 serotonin receptor, a G-protein coupled receptor (GPCR) that plays crucial roles in cognitive function, mood regulation, and neuroprotection. The 5-HT4 receptor is widely distributed throughout the brain and is particularly important in regions involved in learning, memory, and emotional processing. [@receptors2008]
Overview
The 5-HT4 receptor (encoded by the HTR4 gene) is a serotonin receptor subtype that primarily couples to Gs proteins, activating adenylate cyclase and increasing intracellular cAMP levels. This receptor is expressed in various brain regions including the hippocampus, cortex, basal ganglia, and hypothalamus. [@htr2015]
In neurons, 5-HT4 receptor activation has several important effects:
Enhanced neuronal excitability through cAMP-dependent signaling
Promotion of neurotransmitter release, particularly acetylcholine and dopamine
Modulation of synaptic plasticity and long-term potentiation (LTP)
Regulation of gene expression through CREB phosphorylation
Serotonin 5-HT4 receptor neurons are neurons that express the 5-HT4 serotonin receptor, a G-protein coupled receptor (GPCR) that plays crucial roles in cognitive function, mood regulation, and neuroprotection. The 5-HT4 receptor is widely distributed throughout the brain and is particularly important in regions involved in learning, memory, and emotional processing. [@receptors2008]
Overview
The 5-HT4 receptor (encoded by the HTR4 gene) is a serotonin receptor subtype that primarily couples to Gs proteins, activating adenylate cyclase and increasing intracellular cAMP levels. This receptor is expressed in various brain regions including the hippocampus, cortex, basal ganglia, and hypothalamus. [@htr2015]
In neurons, 5-HT4 receptor activation has several important effects:
Enhanced neuronal excitability through cAMP-dependent signaling
Promotion of neurotransmitter release, particularly acetylcholine and dopamine
Modulation of synaptic plasticity and long-term potentiation (LTP)
Regulation of gene expression through CREB phosphorylation
Molecular Biology
Receptor Structure
The HTR4 gene encodes a 388-amino acid GPCR with characteristic seven-transmembrane domain structure. Key features include:
The following diagram shows the key molecular relationships involving Serotonin 5-HT4 Receptor Neurons discovered through SciDEX knowledge graph analysis: