DC-SIGN/CD209 Antibody [Alexa Fluor® 647]

• Reactivity: Hu
• Applications: WB
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Alexa Fluor 647

DC-SIGN/CD209 Antibody [Alexa Fluor® 647] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human DC‑SIGN/CD209
  Lys62-Ala404
  Accession # Q9NNX6
• Specificity: Detects human DC‑SIGN/CD209 in direct ELISAs and Western blots.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Gene: CD209
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

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

Alternate Names for DC-SIGN/CD209 Antibody [Alexa Fluor® 647]

• CD209 antigendendritic cell-specific intracellular adhesion molecules (ICAM)-3 grabbingnon-integrin
• CD209 molecule
• CD209
• CDSIGNHIV gpl20-binding protein
• CLEC4L
• CLEC4LC-type lectin domain family 4 member L
• DCSIGN
• DC-SIGN
• DC-SIGN1
• DC-SIGN1C-type lectin domain family 4, member L
• DC-SIGNMGC129965
• Dendritic cell-specific ICAM-3-grabbing non-integrin 1

Background

Human DC-SIGN (dendritic cell-specific ICAM-3 grabbing nonintegrin; also CD209) is a member of the chromosome 19 C-type lectin family that includes DC-SIGN, DC-SIGN-related protein, CD23 and LSECtin (1). DC-SIGN was initially reported to be a 46 kDa, 404 amino acid (aa) type II transmembrane protein that contained a 40 aa cytoplasmic N-terminus, a 21 aa transmembrane segment, and a 343 aa extracellular C-terminus (2). The extracellular region contains a distal, 115 aa Ca⁺⁺‑dependent carbohydrate-binding lectin domain and a membrane-proximal linker segment that is composed of seven 23 aa repeats (2, 3). The lectin domain is believed to preferably bind mannose, either within the context of ICAM-3 (on T cells) or ICAM-2 (on endothelial cells) (2, 4, 5). DC-SIGN expression appears to be limited to dendritic cells (DC) and macrophages (6), and DC interaction with the ICAMs both aids DC cell trafficking and immunological synapse formation (7). Since the original report on DC-SIGN, multiple splice forms have been discovered, generating both membrane-bound and soluble forms (3). There are eight type A isoforms, all of which begin with the same 15 aa of exon 1a. Four contain the transmembrane region of exon II, and four do not (i.e., are soluble). Among these eight type A isoforms, only three retain the entire 343 aa found in the full length form described in reference #2 (the full length form is referred to as type I mDC-SIGN1A) (3). Five additional isoforms utilize an alternate start site, and these are referred to as type B isoforms. These all show a 35 aa cytoplasmic domain. One also has a transmembrane segment; four do not. Two of the five contain full, unspliced extracellular regions (3). All of this suggests enormous complexity in DC-SIGN biology. DC-SIGN is not well conserved across species. Human and mouse show little overall aa identity. In the lectin domain, however, human is 68% aa identical to mouse (8). Human to rhesus monkey, there is 91% aa identity over the entire extracellular region (8).

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.

Bioinformatics

• Gene Symbol: CD209