CXCR6
protein-codingC-X-C motif chemokine receptor 6, the group of C-X-C motif chemokine receptors|CD molecules
Gene summary
The protein encoded by this gene is a G protein-coupled receptor with seven transmembrane domains that belongs to the CXC chemokine receptor family. This family also includes CXCR1, CXCR2, CXCR3, CXCR4, CXCR5, and CXCR7. This gene, which maps to the chemokine receptor gene cluster, is expressed in several T lymphocyte subsets and bone marrow stromal cells. The encoded protein and its exclusive ligand, chemokine ligand 16 (CCL16), are part of a signalling pathway that regulates T lymphocyte migration to various peripheral tissues (the liver, spleen red pulp, intestine, lungs, and skin) and promotes cell-cell interaction with dendritic cells and fibroblastic reticular cells. CXCR6/CCL16 also controls the localization of resident memory T lymphocytes to different compartments of the lung and maintains airway resident memory T lymphocytes, which are an important first line of defense against respiratory pathogens. The encoded protein serves as an entry coreceptor used by HIV-1 and SIV to enter target cells, in conjunction with CD4. [provided by RefSeq, Aug 2020]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~7.4 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to CXCR6 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_006564.2. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 2 | 1 | 3 | |||
| missense | 29 | 1 | 30 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 29 | 3 | 1 | 33 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_006555.1 | 1 | MANE Select | |
| Ensembl | ENSP00000304414.4 | 1 | MANE Select | |
| RefSeq | NP_001373364.1 | 1 | Standard | |
| RefSeq | NP_001373365.1 | 1 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Chemokine signaling pathway - Homo sapiens (human)
- Cytokine-cytokine receptor interaction - Homo sapiens (human)
- Peptide GPCRs
- Chemokine signaling pathway
- Signaling by GPCR
Biological Process
- chemotaxis
- inflammatory response
- immune response
- G protein-coupled receptor signaling pathway
- positive regulation of cytosolic calcium ion concentration
Molecular Function
- G protein-coupled receptor activity
- coreceptor activity
- C-C chemokine receptor activity
- C-X-C chemokine receptor activity
- chemokine binding
Cellular Component
- plasma membrane
- integral component of plasma membrane
- external side of plasma membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000458629
- Coding exons
- 1
- Length
- 7421
- Individuals with no LoFs
- 0
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 0
- Defined
- 0
- p
- 0.00
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 1.28 | 130 | 178 | 0.730 | 0.00000870 | 2271 |
| Missense (PolyPhen) | 39 | 58.638 | 0.66509 | 757 | ||
| Synonymous | -0.759 | 80 | 71.8 | 1.11 | 0.00000352 | 677 |
| Loss of Function | 0.418 | 7 | 8.30 | 0.843 | 4.29e-7 | 96 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0 | 0.0 | absent |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Receptor for the C-X-C chemokine CXCL16. Used as a coreceptor by SIVs and by strains of HIV-2 and m-tropic HIV-1.;
Recessive Scores
- pRec
- 0.177
Intolerance Scores
- LoFtool
- 0.606
- RVIS EVS
- -0.27
- RVIS percentile EVS
- 34.32
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- N
- Indispensability score
- 0.0565
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |