Entry
Name
Serotonergic synapse
Description
Serotonin (5-Hydroxytryptamine, 5-HT) is a monoamine neurotransmitter that plays important roles in physiological functions such as learning and memory, emotion, sleep, pain, motor function and endocrine secretion, as well as in pathological states including abnormal mood and cognition. Once released from presynaptic axonal terminals, 5-HT binds to receptors, which have been divided into 7 subfamilies on the basis of conserved structures and signaling mechanisms. These families include the ionotropic 5-HT3 receptors and G-protein-coupled 5-HT receptors, the 5-HT1 (Gi /Go -coupled), 5-HT2(Gq-coupled), 5-HT4/6/7 (Gs-coupled) and 5-HT5 receptors. Presynaptically localized 5-HT1B receptors are thought to be the autoreceptors that suppress excess 5-HT release. 5-HT's actions are terminated by transporter- mediated reuptake into neurons, leading to catabolism by monoamine oxidase.
Class
Organismal Systems; Nervous system
BRITE hierarchy
Pathway map
Other DBs
Orthology
K04153 HTR1; 5-hydroxytryptamine receptor 1
K04157 HTR2; 5-hydroxytryptamine receptor 2
K04160 HTR4; 5-hydroxytryptamine receptor 4
K04161 HTR5; 5-hydroxytryptamine receptor 5
K04162 HTR6; 5-hydroxytryptamine receptor 6
K04163 HTR7; 5-hydroxytryptamine receptor 7
K04344 CACNA1A, CAV2.1; voltage-dependent calcium channel P/Q type alpha-1A
K04347 GNG12; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-12
K04365 BRAF; B-Raf proto-oncogene serine/threonine-protein kinase [EC:2.7.11.1 ]
K04366 RAF1; RAF proto-oncogene serine/threonine-protein kinase [EC:2.7.11.1 ]
K04368 MAP2K1, MEK1; mitogen-activated protein kinase kinase 1 [EC:2.7.12.2 ]
K04520 APP; amyloid beta A4 protein
K04534 GNAO, G-ALPHA-O; guanine nucleotide-binding protein G(o) subunit alpha
K04536 GNB1; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
K04537 GNB2; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-2
K04538 GNB4; guanine nucleotide-binding protein subunit beta-4
K04539 GNB5; guanine nucleotide-binding protein subunit beta-5
K04540 GNG3; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-3
K04541 GNG4; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-4
K04542 GNG5; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-5
K04543 GNG7; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-7
K04544 GNG8; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-8
K04545 GNG10; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-10
K04546 GNG11; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-11
K04547 GNG13; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-13
K04548 GNGT1; guanine nucleotide-binding protein G(T) subunit gamma-T1
K04549 GNGT2; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-T2
K04630 GNAI; guanine nucleotide-binding protein G(i) subunit alpha
K04632 GNAS; guanine nucleotide-binding protein G(s) subunit alpha
K04634 GNAQ; guanine nucleotide-binding protein G(q) subunit alpha
K04819 HTR3; 5-hydroxytryptamine receptor 3
K04849 CACNA1B, CAV2.2; voltage-dependent calcium channel N type alpha-1B
K04850 CACNA1C, CAV1.2; voltage-dependent calcium channel L type alpha-1C
K04851 CACNA1D, CAV1.3; voltage-dependent calcium channel L type alpha-1D
K04853 CACNA1F, CAV1.4; voltage-dependent calcium channel L type alpha-1F
K04857 CACNA1S, CAV1.1; voltage-dependent calcium channel L type alpha-1S
K04892 KCND2, KV4.2; potassium voltage-gated channel Shal-related subfamily D member 2
K04943 KCNN2, KCA2.2; potassium intermediate/small conductance calcium-activated channel subfamily N member 2
K04958 ITPR1; inositol 1,4,5-triphosphate receptor type 1
K04959 ITPR2; inositol 1,4,5-triphosphate receptor type 2
K04960 ITPR3; inositol 1,4,5-triphosphate receptor type 3
K04964 TRPC1; transient receptor potential cation channel subfamily C member 1
K04997 KCNJ3, KIR3.1; potassium inwardly-rectifying channel subfamily J member 3
K04999 KCNJ5, KIR3.4; potassium inwardly-rectifying channel subfamily J member 5
K05000 KCNJ6, KIR3.2; potassium inwardly-rectifying channel subfamily J member 6
K05002 KCNJ9, KIR3.3; potassium inwardly-rectifying channel subfamily J member 9
K05037 SLC6A4, SERT; solute carrier family 6 (neurotransmitter transporter, serotonin) member 4
K05181 GABRB; gamma-aminobutyric acid receptor subunit beta
K07825 GNB3; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-3
K07826 GNG2; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
K07827 KRAS, KRAS2; GTPase KRas
K08014 RAPGEF3, EPAC1; Rap guanine nucleotide exchange factor 3
K08021 ALOX12B; arachidonate 12-lipoxygenase (R-type) [EC:1.13.11.-]
K08022 ALOX15B; arachidonate 15-lipoxygenase (second type) / 8-lipoxygenase (S-type) [EC:1.13.11.33 1.13.11.-]
K08155 SLC18A1_2, VMAT; MFS transporter, DHA1 family, solute carrier family 18 (vesicular amine transporter), member 1/2
K08845 ARAF, ARAF1; A-Raf proto-oncogene serine/threonine-protein kinase [EC:2.7.11.1 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
C05964 11-Dehydro-thromboxane B2
Reference
Authors
Millan MJ, Marin P, Bockaert J, Mannoury la Cour C
Title
Signaling at G-protein-coupled serotonin receptors: recent advances and future research directions.
Journal
Reference
Authors
Bockaert J, Claeysen S, Becamel C, Dumuis A, Marin P
Title
Neuronal 5-HT metabotropic receptors: fine-tuning of their structure, signaling, and roles in synaptic modulation.
Journal
Reference
Authors
Raymond JR, Mukhin YV, Gelasco A, Turner J, Collinsworth G, Gettys TW, Grewal JS, Garnovskaya MN
Title
Multiplicity of mechanisms of serotonin receptor signal transduction.
Journal
Reference
Authors
Noda M, Higashida H, Aoki S, Wada K
Title
Multiple signal transduction pathways mediated by 5-HT receptors.
Journal
Reference
Authors
Daubert EA, Condron BG
Title
Serotonin: a regulator of neuronal morphology and circuitry.
Journal
Reference
Authors
Chameau P, van Hooft JA
Title
Serotonin 5-HT(3) receptors in the central nervous system.
Journal
Reference
Authors
Tournois C, Mutel V, Manivet P, Launay JM, Kellermann O
Title
Cross-talk between 5-hydroxytryptamine receptors in a serotonergic cell line. Involvement of arachidonic acid metabolism.
Journal
Reference
Authors
Iliff JJ, Jia J, Nelson J, Goyagi T, Klaus J, Alkayed NJ
Title
Epoxyeicosanoid signaling in CNS function and disease.
Journal
Reference
Authors
Adayev T, Ray I, Sondhi R, Sobocki T, Banerjee P
Title
The G protein-coupled 5-HT1A receptor causes suppression of caspase-3 through MAPK and protein kinase Calpha.
Journal
Reference
Authors
Albert PR, Tiberi M
Title
Receptor signaling and structure: insights from serotonin-1 receptors.
Journal
Reference
Authors
Durham PL, Russo AF
Title
Serotonergic repression of mitogen-activated protein kinase control of the calcitonin gene-related peptide enhancer.
Journal
Reference
Authors
Robert S, Maillet M, Morel E, Launay JM, Fischmeister R, Mercken L, Lezoualc'h F
Title
Regulation of the amyloid precursor protein ectodomain shedding by the 5-HT4 receptor and Epac.
Journal
Reference
Authors
Lezoualc'h F, Robert SJ
Title
The serotonin 5-HT4 receptor and the amyloid precursor protein processing.
Journal
Reference
Authors
Durham PL, Russo AF
Title
Differential regulation of mitogen-activated protein kinase-responsive genes by the duration of a calcium signal.
Journal
Reference
Authors
Hagberg GB, Blomstrand F, Nilsson M, Tamir H, Hansson E
Title
Stimulation of 5-HT2A receptors on astrocytes in primary culture opens voltage-independent Ca2+ channels.
Journal
Reference
Authors
Nestler EJ, Hyman SE, Malenka RC.
Title
Molecular neuropharmacology: A foundation for clinical neuroscience
Journal
The McGraw-Hill Companies, Inc. (2001)
Related pathway
ko00590 Arachidonic acid metabolism