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05HT2B_HUMAN*   SwissProt (?) | Description Local Annotation Link Reference
General Information
NameHTR2B
Description5-hydroxytryptamine 2b receptor (5-ht-2b) (serotonin receptor 2b).
SpeciesHomo sapiens (NCBI taxonomy ID: 9606)
GO0005887 integral to plasma membrane (TAS)
0004993 serotonin receptor activity (TAS)
0004871 signal transducer activity (IEP)
0008015 circulation (TAS)
0007200 G-protein signaling, coupled to IP3 second ... (TAS)
0043123 positive regulation of I-kappaB kinase/NF-k... (IEP)

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schematic display of those terms with internal associations, click the node and browse the corresponding GO term
Domain Architecture (Details)
InterPro domains assigned to SynO:
G-protein-coupled receptors.PCRs.onstitute a vast protein family that encompasses a wide range of functions (including various autocrine.aracrine and endocrine processes). They show considerable diversity at the sequence level.n the basis of which they can be separated into distinct groups. We use the term clan to describe the GPCRs.s they embrace a group of families for which there are indications of evolutionary relationship.ut between which there is no statistically significant similarity in sequence . The currently known clan members include the rhodopsin-like GPCRs.he secretin-like GPCRs.he cAMP receptors.he fungal mating pheromone receptors.nd the metabotropic glutamate receptor family. There is a specialized database for GPCRs: http://www.gpcr.org/7tm/. The rhodopsin-like GPCRs themselves represent a widespread protein family that includes hormone.eurotransmitter and light receptors.ll of which transduce extracellular signals through interaction with guanine nucleotide-binding (G) proteins. Although their activating ligands vary widely in structure and character.he amino acid sequences of the receptors are very similar and are believed to adopt a common structural framework comprising 7transmembrane (TM) helices .5-Hydroxytryptamine (or serotonin) is ubiquitous in plants and animals. It is an important neurotransmitter and local hormone in the CNS and intestine.nd is implicated in a vast array of physiological and pathophysiological pathways. In the periphery.HT contracts a number of smooth muscles.nd induces endothelium-dependent vasodilation through the formation of NO. It is a mediator of peristalsis.nd may be involved in platelet aggregation and homeostasis. In the CNS.HT is believed to be involved in a wide range of functions.ncluding the control of appetite.ood.nxiety.allucinations.leep.omiting and pain perception 5HT receptor ligands are of clinical use in the treatment of depression.igraine and post-operative vomiting.Numerous receptor subtypes have been classified according to their antagonist susceptibilities and their affinities for 5HT. Five 5HT1 subtypes and at least three 5HT2 subtypes have now been identified.n addition to subtypes 5HT3-7 . All share a high degree of sequence similarity.nd have overlapping pharmacological specificities.
  IPR002231:5-Hydroxytryptamine receptor
InterPro domains unassigned to SynO:
G-protein-coupled receptors.PCRs.onstitute a vast protein family that encompasses a wide range of functions (including various autocrine.aracrine and endocrine processes). They show considerable diversity at the sequence level.n the basis of which they can be separated into distinct groups. We use the term clan to describe the GPCRs.s they embrace a group of families for which there are indications of evolutionary relationship.ut between which there is no statistically significant similarity in sequence . The currently known clan members include the rhodopsin-like GPCRs.he secretin-like GPCRs.he cAMP receptors.he fungal mating pheromone receptors.nd the metabotropic glutamate receptor family. There is a specialized database for GPCRs: http://www.gpcr.org/7tm/. The rhodopsin-like GPCRs themselves represent a widespread protein family that includes hormone.eurotransmitter and light receptors.ll of which transduce extracellular signals through interaction with guanine nucleotide-binding (G) proteins. Although their activating ligands vary widely in structure and character.he amino acid sequences of the receptors are very similar and are believed to adopt a common structural framework comprising 7transmembrane (TM) helices .
  IPR000276:Rhodopsin-like GPCR superfamily
G-protein-coupled receptors.PCRs.onstitute a vast protein family that encompasses a wide range of functions (including various autocrine.aracrine and endocrine processes). They show considerable diversity at the sequence level.n the basis of which they can be separated into distinct groups. We use the term clan to describe the GPCRs.s they embrace a group of families for which there are indications of evolutionary relationship.ut between which there is no statistically significant similarity in sequence . The currently known clan members include the rhodopsin-like GPCRs.he secretin-like GPCRs.he cAMP receptors.he fungal mating pheromone receptors.nd the metabotropic glutamate receptor family. There is a specialized database for GPCRs: http://www.gpcr.org/7tm/. The rhodopsin-like GPCRs themselves represent a widespread protein family that includes hormone.eurotransmitter and light receptors.ll of which transduce extracellular signals through interaction with guanine nucleotide-binding (G) proteins. Although their activating ligands vary widely in structure and character.he amino acid sequences of the receptors are very similar and are believed to adopt a common structural framework comprising 7transmembrane (TM) helices .5-Hydroxytryptamine (or serotonin) is ubiquitous in plants and animals. It is an important neurotransmitter and local hormone in the CNS and intestine.nd is implicated in a vast array of physiological and patho- physiological pathways . In the periphery.HT contracts a number of smooth muscles.nd induces endothelium-dependent vasodilation through the formation of NO . It is a mediator of peristalsis.nd may be involved in platelet aggregation and homeostasis. In the CNS.HT is believed to be involved in a wide range of functions.ncluding the control of appetite.ood.nxiety.allucinations.leep.omiting and pain perception . 5HT receptor ligands are of clinical use in the treatment of depression.igraine and post-operative vomiting. Numerous receptor subtypes have been classified according to their antagonist susceptibilities and their affinities for 5HT. Five 5HT1 subtypes and at least three 5HT2 subtypes have now been identified.n addition to subtypes 5HT3-7 . All share a high degree of sequence similarity.nd have overlapping pharmacological specificities. The 5HT2 receptor was originally classified according to its ability to display micromolar affinity for 5HT.o be labelled with [3H]spiperone.nd by its susceptibility to 5HT antagonists . At least 3 members of the family exist (including the re-classified 5HT1C receptor).ll of which share a high degree of sequence similarity and stimulate the phosphoinositide pathway.
  IPR000482:5-Hydroxytryptamine 2B receptor
IPR000276:7tm_1 
Evalue:-74.7212448120117 
Location:71-380IPR000482:5HT2BRECEPTR 
Evalue:0 
Location:443-465IPR000482:5HT2BRECEPTR 
Evalue:0 
Location:421-442IPR000482:5HT2BRECEPTR 
Evalue:0 
Location:25-45IPR000482:5HT2BRECEPTR 
Evalue:0 
Location:401-417IPR002231:5HTRECEPTOR 
Evalue:0 
Location:381-386
SequencesProtein: 5HT2B_HUMAN (481 aa)
mRNA: NM_000867
Local Annotation
Synapse Ontology
transport of vesicles in the presynaptic neuron
sdb:0017 Mobilization: synapsins, CAM kinase I  (Evidence:keywords,domains)
?
sdb:0219 GPCR mediated signaling  (Evidence:keywords,domains)
?
sdb:0328 transmitters release and endocytosis  (Evidence:keywords,domains)
KO assignmentK04158
  Level 3 annotation:
    5-hydroxytryptamine (serotonin) receptor 2B
  Level 2 annotation:
    Calcium signaling pathway
    G-protein coupled receptors
    Neuroactive ligand-receptor interaction
    Gap junction
Loci Structure (Details)Loci index, Chromosomal location, Length, Possible relational loci clusterExon1: 390 residues, 231681198-231682367Exon2: 69 residues, 231686686-231686887Exon3: 241 residues, 231696370-231697088Exon4: 48 residues, 231697929-231698068Exon5: 2 residues, -Jump to 5HT2B_HUMAN  
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