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Protein CD207 PDB 3C22.png
Available structures
PDB Ortholog search: PDBe RCSB
Aliases CD207, CLEC4K, CD207 molecule
External IDs OMIM: 604862 MGI: 2180021 HomoloGene: 9252 GeneCards: CD207
RNA expression pattern
PBB GE CD207 220428 at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 2: 70.83 – 70.84 Mb Chr 6: 83.67 – 83.68 Mb
PubMed search [1] [2]
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CD207, langerin (Cluster of Differentiation 207) is a protein which in humans is encoded by the CD207 gene.[3][4] Langerin is a type II transmembrane, C-type lectin receptor on Langerhans cells.[4][5]


The protein encoded by this gene is expressed in Langerhans cells which are immature dendritic cells of the epidermis and mucosa. Additionally it is known by the name C-type lectin domain family 4 member K (CD antigen CD207). It is also expressed in several other dendritic cell types including dermal CD103+ DCs and splenic CD8+ DCs. Langerin is localized in the Birbeck granules, organelles present in the cytoplasm of Langerhans cells and consisting of superimposed and zippered membranes. It is a C-type lectin with mannose binding specificity, and it has been proposed that mannose binding by this protein leads to internalization of antigen into Birbeck granules and providing access to a nonclassical antigen-processing pathway.[3]

Clinical significance[edit]

Langerin on mucosal Langerhans cells of the human genital epithelium binds to HIV-1 and subsequently internalizes it into Birbeck granules to be degraded.[6][7]

See also[edit]


  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ a b EntrezGene 50489
  4. ^ a b Valladeau J; Ravel O; Dezutter-Dambuyant C; Moore K; Kleijmeer M; Liu Y; Duvert-Frances Vé; Vincent C; Schmitt D (2000). "Langerin, a Novel C-Type Lectin Specific to Langerhans Cells, is an Endocytic Receptor that Induces the Formation of Birbeck Granules". Immunity. 12 (1): 71–81. PMID 10661407. doi:10.1016/S1074-7613(00)80160-0. 
  5. ^ Valladeau J; Clair-Moninot Vé; Dezutter-Dambuyant C; Pin J-J; Kissenpfennig A; Mattéi M-G; Ait-Yahia S; Bates EEM; Malissen B (2002). "Identification of Mouse Langerin/CD207 in Langerhans Cells and Some Dendritic Cells of Lymphoid Tissues". Journal of Immunology. 168 (2): 782–92. PMID 11777972. doi:10.4049/jimmunol.168.2.782. 
  6. ^ De Witte L; Nabatov A; Pion M; Fluitsma D; De Jong MAWP; De Gruijl T; Piguet V; Van Kooyk Y; Geijtenbeek TBH (2007). "Langerin is a natural barrier to HIV-1 transmission by Langerhans cells". Nature Medicine. 13 (3): 367–71. PMID 17334373. doi:10.1038/nm1541. 
  7. ^ Turville S, Wilkinson J, Cameron P, Dable J, Cunningham AL (2003). "The role of dendritic cell C-type lectin receptors in HIV pathogenesis". Journal of Leukocyte Biology. 74 (5): 710–8. PMID 12960229. doi:10.1189/jlb.0503208. 

Further reading[edit]

External links[edit]