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 part
intrinsic to membrane
integral to membrane
postsynaptic membrane
membrane
cell part
Function
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
g-protein coupled receptor activity
g-protein coupled amine receptor activity
ion channel 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