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O95264

- 5HT3B_HUMAN

UniProt

O95264 - 5HT3B_HUMAN

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Protein
5-hydroxytryptamine receptor 3B
Gene
HTR3B
Organism
Homo sapiens (Human)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

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.1 Publication

GO - Molecular functioni

  1. ion channel activity Source: ProtInc
  2. serotonin receptor activity Source: ProtInc
  3. serotonin-activated cation-selective channel activity Source: ProtInc

GO - Biological processi

  1. cation transport Source: GOC
  2. ion transmembrane transport Source: Reactome
  3. synaptic transmission Source: ProtInc
  4. transmembrane transport Source: Reactome
  5. transport Source: ProtInc
Complete GO annotation...

Keywords - Molecular functioni

Ion channel, Ligand-gated ion channel, Receptor

Keywords - Biological processi

Ion transport, Transport

Enzyme and pathway databases

ReactomeiREACT_25387. Ligand-gated ion channel transport.

Names & Taxonomyi

Protein namesi
Recommended name:
5-hydroxytryptamine receptor 3B
Short name:
5-HT3-B
Short name:
5-HT3B
Alternative name(s):
Serotonin receptor 3B
Gene namesi
Name:HTR3B
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
ProteomesiUP000005640: Chromosome 11

Organism-specific databases

HGNCiHGNC:5298. HTR3B.

Subcellular locationi

Cell membrane; Multi-pass membrane protein
Note: Presumably retained within the endoplasmic reticulum unless complexed with HTR3A.1 Publication

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini22 – 238217Extracellular Reviewed prediction
Add
BLAST
Transmembranei239 – 25921Helical; Name=1; Reviewed prediction
Add
BLAST
Topological domaini260 – 2689Cytoplasmic Reviewed prediction
Transmembranei269 – 28618Helical; Name=2; Reviewed prediction
Add
BLAST
Topological domaini287 – 30317Extracellular Reviewed prediction
Add
BLAST
Transmembranei304 – 32421Helical; Name=3; Reviewed prediction
Add
BLAST
Topological domaini325 – 41490Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei415 – 43521Helical; Name=4; Reviewed prediction
Add
BLAST
Topological domaini436 – 4416Extracellular Reviewed prediction

GO - Cellular componenti

  1. integral component of plasma membrane Source: ProtInc
  2. plasma membrane Source: Reactome
  3. postsynaptic membrane Source: InterPro
Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Membrane

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Mutagenesisi52 – 521N → S: Reduced molecular weight. Very little expression in the cell membrane. 1 Publication
Mutagenesisi96 – 961N → S: Reduced molecular weight. Very little expression in the cell membrane. 1 Publication
Mutagenesisi138 – 1381N → S: Reduced molecular weight. Very little expression in the cell membrane. 1 Publication
Mutagenesisi168 – 1681N → S: Reduced molecular weight and cell membrane expression. 1 Publication
Mutagenesisi203 – 2031N → S: Reduced molecular weight. Very little expression in the cell membrane. 1 Publication

Organism-specific databases

PharmGKBiPA29556.

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2121 Reviewed prediction
Add
BLAST
Chaini22 – 4414205-hydroxytryptamine receptor 3B
PRO_0000312289Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi52 – 521N-linked (GlcNAc...)1 Publication
Glycosylationi96 – 961N-linked (GlcNAc...)1 Publication
Glycosylationi138 – 1381N-linked (GlcNAc...)1 Publication
Disulfide bondi155 ↔ 169 By similarity
Glycosylationi168 – 1681N-linked (GlcNAc...)1 Publication
Glycosylationi203 – 2031N-linked (GlcNAc...)1 Publication
Glycosylationi287 – 2871N-linked (GlcNAc...) Reviewed prediction

Post-translational modificationi

N-glycosylation required for membrane localization.

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDbiO95264.
PRIDEiO95264.

PTM databases

PhosphoSiteiO95264.

Expressioni

Tissue specificityi

Expressed in the brain cortex, in the caudate nucleus, the hyppocampus, the thalamus and the amygdala. Detected in the kidney and testis as well as in monocytes of the spleen, small and large intestine, uterus, prostate, ovary and placenta.2 Publications

Gene expression databases

ArrayExpressiO95264.
BgeeiO95264.
CleanExiHS_HTR3B.
GenevestigatoriO95264.

Organism-specific databases

HPAiHPA039559.

Interactioni

Subunit structurei

Forms a pentaheteromeric complex with HTR3A. Not functional as a homomeric complex.2 Publications

Protein-protein interaction databases

STRINGi9606.ENSP00000260191.

Structurei

3D structure databases

ProteinModelPortaliO95264.
SMRiO95264. Positions 35-328.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni381 – 41333HA-stretch
Add
BLAST

Sequence similaritiesi

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG260507.
HOGENOMiHOG000241519.
HOVERGENiHBG106638.
InParanoidiO95264.
KOiK04819.
OMAiEVWNDEF.
OrthoDBiEOG7FXZZK.
PhylomeDBiO95264.
TreeFamiTF315605.

Family and domain databases

Gene3Di1.20.120.370. 2 hits.
2.70.170.10. 1 hit.
InterProiIPR008132. 5HT3_rcpt.
IPR008134. 5HT3_rcpt_B.
IPR027361. Acetylcholine_rcpt_TM.
IPR006202. Neur_chan_lig-bd.
IPR006201. Neur_channel.
IPR006029. Neurotrans-gated_channel_TM.
[Graphical view]
PANTHERiPTHR18945. PTHR18945. 1 hit.
PfamiPF02931. Neur_chan_LBD. 1 hit.
PF02932. Neur_chan_memb. 1 hit.
[Graphical view]
PRINTSiPR01710. 5HT3BRECEPTR.
PR01708. 5HT3RECEPTOR.
PR00252. NRIONCHANNEL.
SUPFAMiSSF63712. SSF63712. 1 hit.
SSF90112. SSF90112. 1 hit.
TIGRFAMsiTIGR00860. LIC. 1 hit.

Sequences (2)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 isoformsi produced by alternative splicing. Align

Isoform 1 (identifier: O95264-1) [UniParc]FASTAAdd to Basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

MLSSVMAPLW ACILVAAGIL ATDTHHPQDS ALYHLSKQLL QKYHKEVRPV    50
YNWTKATTVY LDLFVHAILD VDAENQILKT SVWYQEVWND EFLSWNSSMF 100
DEIREISLPL SAIWAPDIII NEFVDIERYP DLPYVYVNSS GTIENYKPIQ 150
VVSACSLETY AFPFDVQNCS LTFKSILHTV EDVDLAFLRS PEDIQHDKKA 200
FLNDSEWELL SVSSTYSILQ SSAGGFAQIQ FNVVMRRHPL VYVVSLLIPS 250
IFLMLVDLGS FYLPPNCRAR IVFKTSVLVG YTVFRVNMSN QVPRSVGSTP 300
LIGHFFTICM AFLVLSLAKS IVLVKFLHDE QRGGQEQPFL CLRGDTDADR 350
PRVEPRAQRA VVTESSLYGE HLAQPGTLKE VWSQLQSISN YLQTQDQTDQ 400
QEAEWLVLLS RFDRLLFQSY LFMLGIYTIT LCSLWALWGG V 441
Length:441
Mass (Da):50,292
Last modified:May 1, 1999 - v1
Checksum:i2ED59E4E11400648
GO
Isoform 2 (identifier: O95264-2) [UniParc]FASTAAdd to Basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-17: MLSSVMAPLWACILVAA → MIVYFP

Show »
Length:430
Mass (Da):49,285
Checksum:i8C69BE27437D6D03
GO

Natural variant

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Natural varianti129 – 1291Y → S.4 Publications
Corresponds to variant rs1176744 [ dbSNP | Ensembl ].
VAR_037472
Natural varianti143 – 1431I → T.1 Publication
Corresponds to variant rs34550504 [ dbSNP | Ensembl ].
VAR_037473
Natural varianti156 – 1561S → R.3 Publications
Corresponds to variant rs72466469 [ dbSNP | Ensembl ].
VAR_037474
Natural varianti183 – 1831V → I.3 Publications
Corresponds to variant rs17116138 [ dbSNP | Ensembl ].
VAR_037475

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei1 – 1717MLSSV…ILVAA → MIVYFP in isoform 2.
VSP_029796Add
BLAST

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AF169255 mRNA. Translation: AAF03691.1.
AF080582 mRNA. Translation: AAD12242.1.
AM293589 mRNA. Translation: CAL25321.1.
EF444985 Genomic DNA. Translation: ACA06001.1.
AK314268 mRNA. Translation: BAG36930.1.
CCDSiCCDS8364.1. [O95264-1]
RefSeqiNP_006019.1. NM_006028.4. [O95264-1]
UniGeneiHs.241377.

Genome annotation databases

EnsembliENST00000260191; ENSP00000260191; ENSG00000149305. [O95264-1]
ENST00000537778; ENSP00000443118; ENSG00000149305. [O95264-2]
GeneIDi9177.
KEGGihsa:9177.
UCSCiuc001pok.3. human. [O95264-1]
uc001pol.3. human. [O95264-2]

Keywords - Coding sequence diversityi

Alternative splicing, Polymorphism

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AF169255 mRNA. Translation: AAF03691.1 .
AF080582 mRNA. Translation: AAD12242.1 .
AM293589 mRNA. Translation: CAL25321.1 .
EF444985 Genomic DNA. Translation: ACA06001.1 .
AK314268 mRNA. Translation: BAG36930.1 .
CCDSi CCDS8364.1. [O95264-1 ]
RefSeqi NP_006019.1. NM_006028.4. [O95264-1 ]
UniGenei Hs.241377.

3D structure databases

ProteinModelPortali O95264.
SMRi O95264. Positions 35-328.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 9606.ENSP00000260191.

Chemistry

BindingDBi O95264.
ChEMBLi CHEMBL2094132.
GuidetoPHARMACOLOGYi 374.

PTM databases

PhosphoSitei O95264.

Proteomic databases

PaxDbi O95264.
PRIDEi O95264.

Protocols and materials databases

DNASUi 9177.
Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENST00000260191 ; ENSP00000260191 ; ENSG00000149305 . [O95264-1 ]
ENST00000537778 ; ENSP00000443118 ; ENSG00000149305 . [O95264-2 ]
GeneIDi 9177.
KEGGi hsa:9177.
UCSCi uc001pok.3. human. [O95264-1 ]
uc001pol.3. human. [O95264-2 ]

Organism-specific databases

CTDi 9177.
GeneCardsi GC11P113775.
HGNCi HGNC:5298. HTR3B.
HPAi HPA039559.
MIMi 604654. gene.
neXtProti NX_O95264.
PharmGKBi PA29556.
GenAtlasi Search...

Phylogenomic databases

eggNOGi NOG260507.
HOGENOMi HOG000241519.
HOVERGENi HBG106638.
InParanoidi O95264.
KOi K04819.
OMAi EVWNDEF.
OrthoDBi EOG7FXZZK.
PhylomeDBi O95264.
TreeFami TF315605.

Enzyme and pathway databases

Reactomei REACT_25387. Ligand-gated ion channel transport.

Miscellaneous databases

GeneWikii HTR3B.
GenomeRNAii 9177.
NextBioi 34409.
PROi O95264.
SOURCEi Search...

Gene expression databases

ArrayExpressi O95264.
Bgeei O95264.
CleanExi HS_HTR3B.
Genevestigatori O95264.

Family and domain databases

Gene3Di 1.20.120.370. 2 hits.
2.70.170.10. 1 hit.
InterProi IPR008132. 5HT3_rcpt.
IPR008134. 5HT3_rcpt_B.
IPR027361. Acetylcholine_rcpt_TM.
IPR006202. Neur_chan_lig-bd.
IPR006201. Neur_channel.
IPR006029. Neurotrans-gated_channel_TM.
[Graphical view ]
PANTHERi PTHR18945. PTHR18945. 1 hit.
Pfami PF02931. Neur_chan_LBD. 1 hit.
PF02932. Neur_chan_memb. 1 hit.
[Graphical view ]
PRINTSi PR01710. 5HT3BRECEPTR.
PR01708. 5HT3RECEPTOR.
PR00252. NRIONCHANNEL.
SUPFAMi SSF63712. SSF63712. 1 hit.
SSF90112. SSF90112. 1 hit.
TIGRFAMsi TIGR00860. LIC. 1 hit.
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "The pharmacological and functional characteristics of the serotonin 5-HT(3A) receptor are specifically modified by a 5-HT(3B) receptor subunit."
    Dubin A.E., Huvar R., D'Andrea M.R., Pyati J., Zhu J.Y., Joy K.C., Wilson S.J., Galindo J.E., Glass C.A., Luo L., Jackson M.R., Lovenberg T.W., Erlander M.G.
    J. Biol. Chem. 274:30799-30810(1999) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), TISSUE SPECIFICITY.
    Tissue: Small intestine.
  2. "The 5-HT3B subunit is a major determinant of serotonin-receptor function."
    Davies P.A., Pistis M., Hanna M.C., Peters J.A., Lambert J.J., Hales T.G., Kirkness E.F.
    Nature 397:359-363(1999) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), TISSUE SPECIFICITY, SUBUNIT.
  3. "Tissue-specific alternative promoters of the serotonin receptor gene HTR3B in human brain and intestine."
    Tzvetkov M.V., Meineke C., Oetjen E., Hirsch-Ernst K., Brockmoller J.
    Gene 386:52-62(2007) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), VARIANT SER-129.
    Tissue: Brain.
  4. NHLBI resequencing and genotyping service (RS&G)
    Submitted (FEB-2007) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  5. "Complete sequencing and characterization of 21,243 full-length human cDNAs."
    Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S.
    , Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., Isogai T., Sugano S.
    Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1).
  6. "A cytoplasmic region determines single-channel conductance in 5-HT3 receptors."
    Kelley S.P., Dunlop J.I., Kirkness E.F., Lambert J.J., Peters J.A.
    Nature 424:321-324(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, REGION.
  7. "Characterization of the novel human serotonin receptor subunits 5-HT3C, 5-HT3D, and 5-HT3E."
    Niesler B., Walstab J., Combrink S., Moeller D., Kapeller J., Rietdorf J., Boenisch H., Goethert M., Rappold G., Bruess M.
    Mol. Pharmacol. 72:8-17(2007) [PubMed] [Europe PMC] [Abstract]
    Cited for: SUBUNIT.
  8. "The identification of N-glycosylated residues of the human 5-HT3B receptor subunit: importance for cell membrane expression."
    Massoura A.N., Dover T.J., Newman A.S., Barnes N.M.
    J. Neurochem. 116:975-983(2011) [PubMed] [Europe PMC] [Abstract]
    Cited for: SUBCELLULAR LOCATION, GLYCOSYLATION AT ASN-52; ASN-96; ASN-138; ASN-168 AND ASN-203, MUTAGENESIS OF ASN-52; ASN-96; ASN-138; ASN-168 AND ASN-203.
  9. "Investigation of the human serotonin receptor gene HTR3B in bipolar affective and schizophrenic patients."
    Frank B., Niesler B., Noethen M.M., Neidt H., Propping P., Bondy B., Rietschel M., Maier W., Albus M., Rappold G.
    Am. J. Med. Genet. B Neuropsychiatr. Genet. 131:1-5(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: VARIANTS SER-129; ARG-156 AND ILE-183.
  10. "Mutational analysis of serotonin receptor genes: HTR3A and HTR3B in fibromyalgia patients."
    Frank B., Niesler B., Bondy B., Spaeth M., Pongratz D.E., Ackenheil M., Fischer C., Rappold G.
    Clin. Rheumatol. 23:338-344(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: VARIANTS SER-129; ARG-156 AND ILE-183.
  11. "Distinguishable haplotype blocks in the HTR3A and HTR3B region in the Japanese reveal evidence of association of HTR3B with female major depression."
    Yamada K., Hattori E., Iwayama Y., Ohnishi T., Ohba H., Toyota T., Takao H., Minabe Y., Nakatani N., Higuchi T., Detera-Wadleigh S.D., Yoshikawa T.
    Biol. Psychiatry 60:192-201(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: VARIANTS SER-129; THR-143 AND ILE-183.
  12. Cited for: VARIANT ARG-156.

Entry informationi

Entry namei5HT3B_HUMAN
AccessioniPrimary (citable) accession number: O95264
Secondary accession number(s): B0YJ23, Q0VJC3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 4, 2007
Last sequence update: May 1, 1999
Last modified: September 3, 2014
This is version 108 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Miscellaneous

The HA-stretch region of HTR3B seems to confer increased conductance to HTR3A/HTR3B heteromers compared to that of HTR3A homomers.

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Human chromosome 11
    Human chromosome 11: entries, gene names and cross-references to MIM
  2. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
  3. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  4. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  5. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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