Langerin/CD207 Antibody [Biotin]

• Reactivity: Hu
• Applications: WB
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Biotin
• Concentration: LYOPH

Langerin/CD207 Antibody [Biotin] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human Langerin/CD207
  Tyr64-Pro328
  Accession # Q9UJ71
• Specificity: Detects human Langerin/CD207 in Western blots.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Gene: CD207
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Western Blot 0.1 ug/mL
• Readout System:
  • Streptavidin Native Protein NBP2-29367
  • Streptavidin Native Protein NBP2-29370
  • Streptavidin Native Protein NBP2-29371

Packaging, Storage & Formulations

• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Langerin/CD207 Antibody [Biotin]

• CD207 antigen
• CD207 antigen, langerin
• CD207 molecule, langerin
• CD207
• CLEC4KLangerhans cell specific c-type lectin
• C-type lectin domain family 4 member K
• C-type lectin domain family 4, member K
• Langerin

Background

Langerin (also known as CD207) is a type II transmembrane glycoprotein which is member K of the C-type lectin domain family 4 (1). Langerin is used as a marker for Langerhans cells (LCs) which represent the immature dendritic cells in the epidermis (1, 2). LCs uniquely contain “tennis racket”-shaped endosomal recycling compartment subdomains with pentalamellar membranes termed Birbeck granules (1-3). Langerin is necessary and sufficient for Birbeck granule formation (1). The 328 amino acid (aa) human langerin sequence contains a 43 aa cytoplasmic domain, a 21 aa transmembrane domain and a 264 aa extracellular domain (ECD) that contains a coiled-coil domain and a single C-type lectin domain. Trimerization greatly increases the lectin binding affinity (4). Langerin internalizes endogenous proteins such as type I procollagen. Internalization by LC is thought to lead to suppression of self reactions (4-6). Langerin also mediates endocytosis of non-peptide antigens containing mannose, N-acetyl glucosamine and fucose that are expressed by mycobacteria and fungae (4, 7). Some antigens, such as the M. leprae glycolipid arabinomycolate, are ultimately presented by human LC CD1a in cutaneous-draining lymph nodes (8). Langerin performs a barrier-like function to HIV-1 transmission due to its internalization of virus particles for destruction (9). A rare human polymorphism within the lectin domain, W264R, abolishes both carbohydrate recognition and Birbeck granule formation (10, 11). Genetic deletion of mouse langerin was not shown to have functional consequence other than abolishing Birbeck granule formation (12). Human langerin shares 68%, 62%, 71% aa identity with mouse, rat, and bovine langerin ECD, respectively.

1. Valladeau, J. et al. (2000) Immunity 12:71. 
2. Valladeau, J. et al. (2003) Immunol. Res. 28:93. 
3. McDermott, R. et al. (2002) Mol. Biol. Cell 13:317. 
4. Stambach, N.S. and M.E. Taylor (2003) Glycobiology 13:401. 
5. Tada, Y. et al. (2006) J. Invest. Dermatol. 126:1549. 
6. Ritter, U. and A. Osterloh (2007) Med. Microbiol. Immunol. 196:51. 
7. Takahara, K. et al. (2003) Int. Immunol. 16:819.
8. Hunger, R.E. et al. (2004) J. Clin. Invest. 113:701.
9. De Witte, L. et al. (2007) Nat. Med. 13:367.
10. Verdijk, P. et al. (2005) J. Invest. Dermatol. 124:714.
11. Ward, E.M. et al. (2006) J. Biol. Chem. 281:15450.
12. Kissenpfennig, A. et al. (2005) Mol. Cell. Biol. 25:88.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Publications for Langerin/CD207 Antibody (BAF2088)(2)

Publications using BAF2088

• Ogawa Y, Kawamura T, Kimura T, Ito M, Blauvelt A, Shimada S Gram-positive bacteria enhance HIV-1 susceptibility in Langerhans cells, but not in dendritic cells, via Toll-like receptor activation. Blood, 2009-03-11;113(21):5157-66. 2009-03-11 [PMID: 19279330] (Flow Cytometry, Human)
• Walling DM, Ray AJ, Nichols JE, Flaitz CM, Nichols CM Epstein-Barr virus infection of Langerhans cell precursors as a mechanism of oral epithelial entry, persistence, and reactivation. J. Virol., 2007-03-21;81(13):7249-68. 2007-03-21 [PMID: 17376908] (IHC-P, Human)

Bioinformatics

• Gene Symbol: CD207
• Uniprot:
  • Q9UJ71()