Identification
HMDB Protein ID CDBP04860
Secondary Accession Numbers Not Available
Name 5-hydroxytryptamine receptor 3B
Description Not Available
Synonyms
  1. 5-HT3-B
  2. 5-HT3B
  3. Serotonin receptor 3B
Gene Name HTR3B
Protein Type Receptor
Biological Properties
General Function Involved in extracellular ligand-gated ion channel activity
Specific Function This is one of the several different receptors for 5- hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. This receptor is a ligand-gated ion channel, which when activated causes fast, depolarizing responses. It is a cation-specific, but otherwise relatively nonselective, ion channel
GO Classification
Component
membrane
cell part
membrane part
intrinsic to membrane
integral to membrane
postsynaptic membrane
Function
g-protein coupled receptor activity
g-protein coupled amine receptor activity
ion channel activity
ligand-gated ion channel activity
extracellular ligand-gated ion channel activity
receptor activity
transmembrane receptor activity
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
molecular transducer activity
signal transducer activity
transporter activity
serotonin receptor activity
Process
establishment of localization
transport
ion transport
Cellular Location
  1. Cell membrane
  2. Multi-pass membrane protein
Pathways
Gene Properties
Chromosome Location Chromosome:1
Locus 11q23.1
SNPs HTR3B
Gene Sequence
>1326 bp
ATGTTGTCAAGTGTAATGGCTCCCCTGTGGGCCTGCATCCTGGTGGCTGCAGGAATTCTA
GCCACAGATACACATCATCCCCAGGATTCTGCTCTGTATCATCTCAGCAAGCAGCTATTA
CAGAAATATCATAAAGAAGTGAGACCTGTTTACAACTGGACCAAGGCCACCACAGTCTAC
CTGGACCTGTTCGTCCATGCTATATTGGATGTGGATGCAGAGAATCAAATATTAAAGACA
AGTGTATGGTACCAAGAGGTCTGGAATGATGAATTTTTATCCTGGAACTCCAGCATGTTT
GATGAGATTAGAGAGATCTCCCTACCTCTAAGTGCCATCTGGGCCCCCGATATCATCATC
AATGAGTTTGTGGACATTGAAAGATACCCTGACCTTCCCTATGTTTATGTGAACTCATCT
GGGACCATTGAGAACTATAAGCCCATCCAGGTGGTCTCTGCGTGCAGTTTAGAGACATAT
GCTTTTCCATTTGATGTCCAGAATTGCAGCCTGACCTTCAAGAGCATTCTGCATACAGTG
GAAGACGTAGACCTGGCCTTTCTGAGGAGCCCAGAAGACATTCAGCATGACAAAAAGGCG
TTTTTGAATGACAGTGAGTGGGAACTTCTATCTGTGTCCTCCACATACAGCATCCTGCAG
AGCAGCGCTGGAGGATTTGCACAGATTCAGTTTAATGTGGTGATGCGCAGGCACCCCCTG
GTCTATGTCGTGAGTCTGCTGATTCCTAGCATCTTTCTCATGCTGGTGGACCTGGGGAGC
TTCTACCTGCCACCCAACTGCCGAGCCAGGATTGTGTTCAAGACCAGTGTGCTGGTGGGC
TACACCGTCTTCAGGGTCAACATGTCCAACCAGGTGCCACGGAGTGTAGGGAGCACCCCT
CTGATTGGGCACTTCTTCACCATCTGCATGGCCTTCTTGGTTCTCAGCTTAGCTAAGTCC
ATCGTGTTGGTCAAATTCCTCCATGATGAGCAGCGTGGTGGACAGGAGCAGCCCTTCTTG
TGCCTTCGAGGGGACACCGATGCTGACAGGCCTAGAGTGGAACCCAGGGCCCAACGTGCT
GTGGTAACAGAGTCCTCGCTGTATGGAGAGCACCTGGCCCAGCCAGGAACCCTGAAGGAA
GTCTGGTCGCAGCTTCAATCTATCAGCAACTACCTCCAAACTCAGGACCAGACAGACCAA
CAGGAGGCAGAGTGGCTGGTCCTCCTGTCCCGCTTTGACCGACTGCTCTTCCAAAGCTAC
CTTTTCATGCTGGGGATCTACACCATCACTCTGTGCTCCCTCTGGGCACTGTGGGGCGGC
GTGTGA
Protein Properties
Number of Residues 441
Molecular Weight 50291.3
Theoretical pI 4.99
Pfam Domain Function
Signals
  • ["1-21"]
Transmembrane Regions
  • ["239-259", "269-286", "304-324", "415-435"]
Protein Sequence
>5-hydroxytryptamine receptor 3B
MLSSVMAPLWACILVAAGILATDTHHPQDSALYHLSKQLLQKYHKEVRPVYNWTKATTVY
LDLFVHAILDVDAENQILKTSVWYQEVWNDEFLSWNSSMFDEIREISLPLSAIWAPDIII
NEFVDIERYPDLPYVYVNSSGTIENYKPIQVVSACSLETYAFPFDVQNCSLTFKSILHTV
EDVDLAFLRSPEDIQHDKKAFLNDSEWELLSVSSTYSILQSSAGGFAQIQFNVVMRRHPL
VYVVSLLIPSIFLMLVDLGSFYLPPNCRARIVFKTSVLVGYTVFRVNMSNQVPRSVGSTP
LIGHFFTICMAFLVLSLAKSIVLVKFLHDEQRGGQEQPFLCLRGDTDADRPRVEPRAQRA
VVTESSLYGEHLAQPGTLKEVWSQLQSISNYLQTQDQTDQQEAEWLVLLSRFDRLLFQSY
LFMLGIYTITLCSLWALWGGV
GenBank ID Protein 4218949
UniProtKB/Swiss-Prot ID O95264
UniProtKB/Swiss-Prot Entry Name 5HT3B_HUMAN
PDB IDs Not Available
GenBank Gene ID AF080582
GeneCard ID HTR3B
GenAtlas ID HTR3B
HGNC ID HGNC:5298
References
General References Not Available