CCR6 - C-C motif chemokine receptor 6 (human)
Gene
Symbol
Taxonomy
Dates
- Create:2016-09-14
- Modify:2025-01-15
Description
This gene encodes a member of the beta chemokine receptor family, which is predicted to be a seven transmembrane protein similar to G protein-coupled receptors. The gene is preferentially expressed by immature dendritic cells and memory T cells. The ligand of this receptor is macrophage inflammatory protein 3 alpha (MIP-3 alpha). This receptor has been shown to be important for B-lineage maturation and antigen-driven B-cell differentiation, and it may regulate the migration and recruitment of dentritic and T cells during inflammatory and immunological responses. Alternatively spliced transcript variants that encode the same protein have been described for this gene. [provided by RefSeq, Jul 2008]
Enables C-C chemokine binding activity and C-C chemokine receptor activity. Involved in calcium-mediated signaling; cell chemotaxis; and positive regulation of flagellated sperm motility involved in capacitation. Located in cell surface; sperm flagellum; and sperm plasma membrane. Biomarker of several diseases, including IgA glomerulonephritis; exanthem; primary cutaneous T-cell non-Hodgkin lymphoma; psoriasis; and systemic scleroderma.
- BN-1
- C-C CKR-6
- CC-CKR-6
- CCR-6
- CD196
- CKR-L3
- CKRL3
- CMKBR6
- DCR2
- DRY6
- GPR29
- GPRCY4
- STRL22
- C-C chemokine receptor type 6
- G protein-coupled receptor 29
- LARC receptor
- chemokine (C-C motif) receptor 6
- chemokine (C-C) receptor 6
- chemokine receptor-like 3
- seven-transmembrane receptor, lymphocyte, 22
Receptor for the C-C type chemokine CCL20 (PMID: 9169459). Binds to CCL20 and subsequently transduces a signal by increasing the intracellular calcium ion levels (PMID: 20068036). Although CCL20 is its major ligand it can also act as a receptor for non-chemokine ligands such as beta-defensins (PMID: 25585877). Binds to defensin DEFB1 leading to increase in intracellular calcium ions and cAMP levels. Its binding to DEFB1 is essential for the function of DEFB1 in regulating sperm motility and bactericidal activity (PMID: 25122636). Binds to defensins DEFB4 and DEFB4A/B and mediates their chemotactic effects (PMID: 20068036). The ligand-receptor pair CCL20-CCR6 is responsible for the chemotaxis of dendritic cells (DC), effector/ memory T-cells and B-cells and plays an important role at skin and mucosal surfaces under homeostatic and inflammatory conditions, as well as in pathology, including cancer and various autoimmune diseases. CCR6-mediated signals are essential for immune responses to microbes in the intestinal mucosa and in the modulation of inflammatory responses initiated by tissue insult and trauma (PMID: 21376174). CCR6 is essential for the recruitment of both the pro-inflammatory IL17 producing helper T-cells (Th17) and the regulatory T-cells (Treg) to sites of inflammation. Required for the normal migration of Th17 cells in Peyers-patches and other related tissue sites of the intestine and plays a role in regulating effector T-cell balance and distribution in inflamed intestine. Plays an important role in the coordination of early thymocyte precursor migration events important for normal subsequent thymocyte precursor development, but is not required for the formation of normal thymic natural regulatory T-cells (nTregs). Required for optimal differentiation of DN2 and DN3 thymocyte precursors. Essential for B-cell localization in the subepithelial dome of Peyers-patches and for efficient B-cell isotype switching to IgA in the Peyers-patches. Essential for appropriate anatomical distribution of memory B-cells in the spleen and for the secondary recall response of memory B-cells (By similarity). Positively regulates sperm motility and chemotaxis via its binding to CCL20 (PMID: 23765988).
Highly accurate protein structure prediction with AlphaFold. Nature. 2021 Aug;596(7873):583-589. DOI:10.1038/s41586-021-03819-2. PMID:34265844; PMCID:PMC8371605
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