OR2B6
gene geneOn this page
Also known as OR6-31dJ408B20.2OR5-40OR5-41
Summary
OR2B6 (olfactory receptor family 2 subfamily B member 6, HGNC:8241) is a protein-coding gene on chromosome 6p22.1, encoding Olfactory receptor 2B6 (P58173). Odorant receptor.
Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome.
Source: NCBI Gene 26212 — RefSeq curated summary.
At a glance
- GWAS associations: 25
- Clinical variants (ClinVar): 46 total
- MANE Select transcript:
NM_012367
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:8241 |
| Approved symbol | OR2B6 |
| Name | olfactory receptor family 2 subfamily B member 6 |
| Location | 6p22.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | OR6-31, dJ408B20.2, OR5-40, OR5-41 |
| Ensembl gene | ENSG00000124657 |
| Ensembl biotype | protein_coding |
| Entrez | 26212 |
Gene structure
Transcript identifiers
Ensembl transcripts: 1 — 1 protein_coding
ENST00000244623
RefSeq mRNA: 1 — MANE Select: NM_012367
NM_012367
CCDS: CCDS4642
Canonical transcript exons
ENST00000244623 — 1 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000848500 | 27957241 | 27958182 |
Expression profiles
Bgee: expression breadth broad, 61 present calls, max score 61.53.
Top tissues by expression
238 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| mucosa of transverse colon | UBERON:0004991 | 61.53 | gold quality |
| monocyte | CL:0000576 | 61.30 | gold quality |
| mononuclear cell | CL:0000842 | 61.19 | gold quality |
| leukocyte | CL:0000738 | 61.07 | gold quality |
| tibialis anterior | UBERON:0001385 | 60.58 | silver quality |
| endometrium epithelium | UBERON:0004811 | 59.68 | gold quality |
| sperm | CL:0000019 | 58.51 | gold quality |
| male germ cell | CL:0000015 | 58.04 | gold quality |
| cranial nerve II | UBERON:0000941 | 57.97 | silver quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 57.57 | gold quality |
| gingival epithelium | UBERON:0001949 | 52.74 | gold quality |
| blood | UBERON:0000178 | 52.18 | gold quality |
| oocyte | CL:0000023 | 52.14 | gold quality |
| deltoid | UBERON:0001476 | 51.96 | gold quality |
| quadriceps femoris | UBERON:0001377 | 51.60 | gold quality |
| thymus | UBERON:0002370 | 51.54 | silver quality |
| granulocyte | CL:0000094 | 51.12 | silver quality |
| Brodmann (1909) area 10 | UBERON:0013541 | 50.79 | gold quality |
| vastus lateralis | UBERON:0001379 | 50.52 | gold quality |
| ileal mucosa | UBERON:0000331 | 50.49 | silver quality |
| frontal pole | UBERON:0002795 | 50.41 | gold quality |
| middle frontal gyrus | UBERON:0002702 | 50.30 | gold quality |
| paraflocculus | UBERON:0005351 | 50.18 | gold quality |
| myocardium | UBERON:0002349 | 49.46 | gold quality |
| Brodmann (1909) area 46 | UBERON:0006483 | 49.30 | gold quality |
| blood vessel layer | UBERON:0004797 | 49.29 | gold quality |
| oviduct epithelium | UBERON:0004804 | 49.28 | gold quality |
| cerebellar vermis | UBERON:0004720 | 49.25 | gold quality |
| cervix squamous epithelium | UBERON:0006922 | 49.20 | gold quality |
| hair follicle | UBERON:0002073 | 49.18 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 0.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | no | 1.80 |
Regulation
Is transcription factor: no
Cross-species orthologs
2 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| mus_musculus | Or2b6 | ENSMUSG00000036658 |
| rattus_norvegicus | Or2b2 | ENSRNOG00000084603 |
Paralogs (92): OR13C9 (ENSG00000136839), OR13C4 (ENSG00000148136), OR2M5 (ENSG00000162727), OR10A5 (ENSG00000166363), OR2D2 (ENSG00000166368), OR2B2 (ENSG00000168131), OR2C1 (ENSG00000168158), OR13J1 (ENSG00000168828), OR10G3 (ENSG00000169208), OR10A3 (ENSG00000170683), OR10A4 (ENSG00000170782), OR10A2 (ENSG00000170790), OR13H1 (ENSG00000171054), OR2K2 (ENSG00000171133), OR2M4 (ENSG00000171180), OR10H2 (ENSG00000171942), OR10H5 (ENSG00000172519), OR10AD1 (ENSG00000172640), OR2Y1 (ENSG00000174339), OR10AG1 (ENSG00000174970), OR2T1 (ENSG00000175143), OR10P1 (ENSG00000175398), OR2T35 (ENSG00000177151), OR2M7 (ENSG00000177186), OR2T12 (ENSG00000177201), OR2T33 (ENSG00000177212), OR2AJ1 (ENSG00000177275), OR2T8 (ENSG00000177462), OR2G3 (ENSG00000177476), OR2G2 (ENSG00000177489), OR2B11 (ENSG00000177535), OR2D3 (ENSG00000178358), OR13D1 (ENSG00000179055), OR10A7 (ENSG00000179919), OR2Z1 (ENSG00000181733), OR2V2 (ENSG00000182613), OR10G7 (ENSG00000182634), OR2T29 (ENSG00000182783), OR2T34 (ENSG00000183310), OR2T10 (ENSG00000184022)
Protein
Protein identifiers
Olfactory receptor 2B6 — P58173 (reviewed: P58173)
Alternative names: Hs6M1-32, Olfactory receptor 2B1, Olfactory receptor 2B5, Olfactory receptor 5-40, Olfactory receptor 6-31, Olfactory receptor OR6-4
All UniProt accessions (1): P58173
UniProt curated annotations — full annotation on UniProt →
Function. Odorant receptor.
Subcellular location. Cell membrane.
Similarity. Belongs to the G-protein coupled receptor 1 family.
RefSeq proteins (1): NP_036499* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000276 | GPCR_Rhodpsn | Family |
| IPR000725 | Olfact_rcpt | Family |
| IPR017452 | GPCR_Rhodpsn_7TM | Domain |
Pfam: PF13853
UniProt features (20 total): topological domain 8, transmembrane region 7, sequence variant 2, chain 1, glycosylation site 1, disulfide bond 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-P58173-F1 | 87.96 | 0.61 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Disulfide bonds (1): 97–189
Glycosylation sites (1): 5
Function
Pathways and Gene Ontology
Reactome pathways
1 pathways
| ID | Pathway |
|---|---|
| R-HSA-9752946 | Expression and translocation of olfactory receptors |
MSigDB gene sets: 75 (showing top):
MORF_MSH3, MORF_BRCA1, GOBP_SENSORY_PERCEPTION_OF_CHEMICAL_STIMULUS, MORF_RAD51L3, MORF_CTSB, MORF_IL4, MORF_PRKCA, KEGG_OLFACTORY_TRANSDUCTION, MORF_THPO, GOBP_DETECTION_OF_STIMULUS, GOBP_SENSORY_PERCEPTION, MORF_ATF2, MORF_BCL2L11, MORF_PPP2R5B, GAL_LEUKEMIC_STEM_CELL_UP
GO Biological Process (4): detection of chemical stimulus involved in sensory perception of smell (GO:0050911), signal transduction (GO:0007165), G protein-coupled receptor signaling pathway (GO:0007186), sensory perception of smell (GO:0007608)
GO Molecular Function (2): G protein-coupled receptor activity (GO:0004930), olfactory receptor activity (GO:0004984)
GO Cellular Component (2): plasma membrane (GO:0005886), membrane (GO:0016020)
Reactome top-level categories
Rollup of top-1 pathways:
| Category | Pathways |
|---|---|
| Olfactory Signaling Pathway | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| transmembrane signaling receptor activity | 2 |
| sensory perception of smell | 1 |
| detection of chemical stimulus involved in sensory perception | 1 |
| cell communication | 1 |
| cellular process | 1 |
| signaling | 1 |
| regulation of cellular process | 1 |
| cellular response to stimulus | 1 |
| G protein-coupled receptor activity | 1 |
| signal transduction | 1 |
| sensory perception of chemical stimulus | 1 |
| G protein-coupled receptor signaling pathway | 1 |
| detection of chemical stimulus involved in sensory perception of smell | 1 |
| membrane | 1 |
| cell periphery | 1 |
| cellular anatomical structure | 1 |
Protein interactions and networks
STRING
168 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| OR2B6 | GPR160 | Q9UJ42 | 400 |
| OR2B6 | HDDC2 | Q7Z4H3 | 370 |
| OR2B6 | LRRC46 | Q96FV0 | 369 |
| OR2B6 | SEC14L5 | O43304 | 348 |
| OR2B6 | FRMD1 | Q8N878 | 327 |
| OR2B6 | PCED1B | Q96HM7 | 310 |
| OR2B6 | H2AC14 | Q99878 | 258 |
| OR2B6 | SEZ6 | Q53EL9 | 257 |
| OR2B6 | ZSCAN12 | O43309 | 256 |
| OR2B6 | RCAN3 | Q9UKA8 | 247 |
| OR2B6 | TRIM58 | Q8NG06 | 240 |
| OR2B6 | SLC37A1 | P57057 | 235 |
| OR2B6 | CEP55 | Q53EZ4 | 229 |
| OR2B6 | PPP2R5D | Q14738 | 227 |
| OR2B6 | XKR6 | Q5GH73 | 224 |
IntAct
2 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| M | psi-mi:“MI:0914”(association) | 0.350 |
ESM2 similar proteins: A4D2G3, O60403, O76001, O76002, O76100, O95006, O95047, P23269, P23272, P23274, P30953, P30955, P34984, P58173, P59922, P70526, Q13607, Q15619, Q15622, Q5TZ20, Q60890, Q6IF42, Q7Z3T1, Q8N628, Q8NGA6, Q8NGQ2, Q8NGT7, Q8NGT9, Q8NGX0, Q8NGY5, Q8NGZ4, Q8NGZ5, Q8NGZ6, Q8NHA6, Q8VGD6, Q8VGI1, Q95156, Q96R30, Q96R45, Q96R47
Diamond homologs: A0A096LPK9, A0A0X1KG70, A6NHA9, A6NMZ5, O60412, O76099, O95013, P0C604, P0C623, P0C645, P0DN82, P23270, P23275, P58173, P58180, P58182, Q15615, Q60878, Q60881, Q60888, Q6IEV9, Q6IEY1, Q6IF82, Q7TQQ0, Q8IXE1, Q8N0Y3, Q8N628, Q8NGA8, Q8NGB2, Q8NGB4, Q8NGB6, Q8NGB8, Q8NGB9, Q8NGC2, Q8NGC3, Q8NGC4, Q8NGC6, Q8NGD0, Q8NGD1, Q8NGD2
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
46 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 40 |
| Likely benign | 6 |
| Benign | 0 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
181 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 6:27957309:G:GT | donor_gain | 0.9000 |
| 6:27957848:G:GG | donor_gain | 0.8800 |
| 6:27957327:G:GA | donor_gain | 0.8700 |
| 6:27957847:A:AG | donor_gain | 0.8600 |
| 6:27957998:GTACA:G | acceptor_gain | 0.8600 |
| 6:27957508:A:T | donor_gain | 0.8500 |
| 6:27957997:A:AG | acceptor_gain | 0.8300 |
| 6:27957998:G:GG | acceptor_gain | 0.8300 |
| 6:27957363:C:T | donor_gain | 0.7900 |
| 6:27957998:GTAC:G | acceptor_gain | 0.7700 |
| 6:27957998:GT:G | acceptor_gain | 0.7600 |
| 6:27957466:T:G | donor_gain | 0.7500 |
| 6:27957996:T:G | acceptor_gain | 0.7200 |
| 6:27957270:G:GT | donor_gain | 0.7100 |
| 6:27957329:T:TA | donor_gain | 0.7100 |
| 6:27957507:G:GT | donor_gain | 0.7000 |
| 6:27957994:TATA:T | acceptor_loss | 0.7000 |
| 6:27957996:TAGTA:T | acceptor_loss | 0.7000 |
| 6:27957997:A:AT | acceptor_loss | 0.7000 |
| 6:27957283:C:G | donor_gain | 0.6900 |
| 6:27957326:T:TA | donor_gain | 0.6900 |
| 6:27957491:A:G | donor_gain | 0.6900 |
| 6:27957271:G:GT | donor_gain | 0.6800 |
| 6:27957416:T:G | donor_gain | 0.6800 |
| 6:27957331:T:TG | donor_gain | 0.6700 |
| 6:27957998:GTA:G | acceptor_gain | 0.6600 |
| 6:27957469:AC:A | donor_gain | 0.6500 |
| 6:27957602:A:G | donor_gain | 0.6400 |
| 6:27957330:C:A | donor_gain | 0.6200 |
| 6:27957353:C:G | donor_gain | 0.6200 |
AlphaMissense
2021 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 6:27957274:T:C | F12L | 0.864 |
| 6:27957276:T:A | F12L | 0.864 |
| 6:27957276:T:G | F12L | 0.864 |
| 6:27957289:T:C | F17L | 0.825 |
| 6:27957291:C:A | F17L | 0.825 |
| 6:27957291:C:G | F17L | 0.825 |
| 6:27957607:T:C | F123L | 0.764 |
| 6:27957609:T:A | F123L | 0.764 |
| 6:27957609:T:G | F123L | 0.764 |
| 6:27957769:T:C | F177L | 0.753 |
| 6:27957771:T:A | F177L | 0.753 |
| 6:27957771:T:G | F177L | 0.753 |
| 6:27957421:T:C | F61L | 0.729 |
| 6:27957423:T:A | F61L | 0.729 |
| 6:27957423:T:G | F61L | 0.729 |
| 6:27957952:T:C | F238L | 0.728 |
| 6:27957954:T:A | F238L | 0.728 |
| 6:27957954:T:G | F238L | 0.728 |
| 6:27957594:G:A | M118I | 0.711 |
| 6:27957594:G:C | M118I | 0.711 |
| 6:27957594:G:T | M118I | 0.711 |
| 6:27957424:T:C | F62L | 0.708 |
| 6:27957426:T:A | F62L | 0.708 |
| 6:27957426:T:G | F62L | 0.708 |
| 6:27957685:T:A | W149R | 0.705 |
| 6:27957685:T:C | W149R | 0.705 |
| 6:27957991:T:C | F251L | 0.704 |
| 6:27957993:T:A | F251L | 0.704 |
| 6:27957993:T:G | F251L | 0.704 |
| 6:27957948:A:C | K236N | 0.701 |
dbSNP variants (sampled 300 via entrez): RS1001246256 (6:27958290 T>A), RS1001416608 (6:27956086 C>G,T), RS1001491243 (6:27955655 C>A,T), RS1002700917 (6:27957154 A>G), RS1002916700 (6:27956900 A>C), RS1003088603 (6:27957835 C>G,T), RS1005398872 (6:27957757 G>A,C), RS1007057782 (6:27957252 A>T), RS1008029705 (6:27956884 G>A,T), RS1008508967 (6:27955987 A>G), RS1008898395 (6:27956529 C>A,T), RS1010496280 (6:27956096 T>C), RS1010683142 (6:27955624 A>G), RS1011046431 (6:27955964 G>A,T), RS1011574140 (6:27957022 G>A)
Disease associations
OMIM: gene `` | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
25 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST004521_112 | Autism spectrum disorder or schizophrenia | 3.000000e-26 |
| GCST004521_115 | Autism spectrum disorder or schizophrenia | 3.000000e-16 |
| GCST004521_116 | Autism spectrum disorder or schizophrenia | 3.000000e-16 |
| GCST004521_166 | Autism spectrum disorder or schizophrenia | 4.000000e-24 |
| GCST004521_212 | Autism spectrum disorder or schizophrenia | 5.000000e-14 |
| GCST004521_22 | Autism spectrum disorder or schizophrenia | 2.000000e-11 |
| GCST004521_23 | Autism spectrum disorder or schizophrenia | 2.000000e-11 |
| GCST004521_6 | Autism spectrum disorder or schizophrenia | 2.000000e-15 |
| GCST004521_73 | Autism spectrum disorder or schizophrenia | 8.000000e-11 |
| GCST004521_77 | Autism spectrum disorder or schizophrenia | 1.000000e-19 |
| GCST004749_72 | Lung cancer in ever smokers | 1.000000e-08 |
| GCST004750_88 | Squamous cell lung carcinoma | 2.000000e-10 |
| GCST004750_89 | Squamous cell lung carcinoma | 2.000000e-10 |
| GCST006940_163 | Neurociticism | 2.000000e-08 |
| GCST007267_213 | Systolic blood pressure | 3.000000e-08 |
| GCST008921_6 | Asthma and major depressive disorder | 1.000000e-09 |
| GCST010002_50 | Refractive error | 4.000000e-34 |
| GCST010142_16 | Fish- and plant-related diet | 2.000000e-10 |
| GCST010142_19 | Fish- and plant-related diet | 4.000000e-10 |
| GCST010142_34 | Fish- and plant-related diet | 7.000000e-09 |
| GCST010142_35 | Fish- and plant-related diet | 8.000000e-09 |
| GCST010142_42 | Fish- and plant-related diet | 1.000000e-08 |
| GCST010142_7 | Fish- and plant-related diet | 3.000000e-12 |
| GCST010702_75 | Subcortical volume (MOSTest) | 3.000000e-11 |
| GCST010703_272 | Brain morphology (MOSTest) | 7.000000e-16 |
EFO canonical traits (4, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0007660 | neuroticism measurement |
| EFO:0006335 | systolic blood pressure |
| EFO:0008111 | diet measurement |
| EFO:0004346 | neuroimaging measurement |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
11 total (human), top 11 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| (+)-JQ1 compound | increases expression | 3 |
| sotorasib | affects cotreatment, increases expression | 1 |
| propionaldehyde | decreases expression | 1 |
| 2-methyl-4-isothiazolin-3-one | increases expression | 1 |
| abrine | increases expression | 1 |
| licochalcone B | increases expression | 1 |
| trametinib | increases expression, affects cotreatment | 1 |
| NVP-BKM120 | affects cotreatment, increases expression | 1 |
| Benzo(a)pyrene | decreases methylation | 1 |
| Phthalic Acids | increases methylation | 1 |
| Aflatoxin B1 | decreases methylation | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.