SIGNR1/CD209b Antibody

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications WB, B/N
Clonality
Polyclonal
Host
Goat
Conjugate
Unconjugated
Concentration
LYOPH

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SIGNR1/CD209b Antibody Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse SIGNR1
Ser76-Gly325
Accession # Q8CJ91
Specificity
Detects mouse SIGNR1 in direct ELISAs and Western blots. In direct ELISAs, approximately 20% cross‑reactivity with recombinant mouse (rm) SIGNR3 and rmSIGNR4 is observed, and approximately 10% cross-reactivity with recombinant human DC-SIGNR and rmDC‑SIGN is observed.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Goat
Gene
Cd209b
Purity
Immunogen affinity purified
Purity Statement
Antigen Affinity-purified
Endotoxin Note
<0.10 EU per 1 μg of the antibody by the LAL method.
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot 0.1 ug/mL
  • Adhesion Blockade 10 ug/mL
Publications
Read Publications using
AF1836 in the following applications:

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 Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Purity
Immunogen affinity purified
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 SIGNR1/CD209b Antibody

  • CD209 antigen like protein B
  • CD209b
  • DC SIGN related protein 1
  • DC SIGNR1
  • OtB7
  • SIGNR1

Background

SIGNR1 belongs to the family of C-type lectins that participate in innate immune responses by binding and clearing pathogens (1-3). SIGNR1 is one of four mouse proteins, encoded by separate genes, with significant homology to DC‑SIGN and DC‑SIGNR (4). Mouse SIGNR1 consists of a 53 amino acid (aa) cytoplasmic domain, a 20 aa transmembrane segment, and a 252 aa extracellular domain that contains a juxtamembrane neck region and a carbohydrate recognition domain (CRD) (4, 5). SIGNR1 is a 50kDa type II protein that forms high molecular weight aggregates as has been shown for DC‑SIGN and DC‑SIGNR (6, 7). The mouse SIGNR1 mRNA is extensively spliced, giving rise to multiple isoforms in addition to variability in the 5’ and 3’ untranslated regions. The alpha isoform is known as SIGNR1. The beta  and  gamma  isoforms lack the transmembrane segment, with the gamma isoform also showing a 21 aa insertion in the CRD. The δ isoform lacks almost the entire CRD (5). Functional differences between the isoforms have not been described. Within the CRD, mouse SIGNR1 shares 67%‑70% aa sequence identity with mouse DC‑SIGN, SIGNR2, 3, and 4, and 64% - 68% aa sequence identity with human DC‑SIGN, human L-SIGN, and rat DC‑SIGN. The CRD binds mannose, GlcNAc, and fucose structures on some bacterial strains, mycobacteria, and yeast (8). SIGNR1 is expressed on macrophages found in the splenic marginal zone, lymph node medulla, and peritoneum (6, 9, 10). It plays a dominant role in the clearance of circulating S. pneumoniae (11 - 13), enhances TLR4 signaling (14), and cooperates with Dectin-1 in the nonopsonic clearance of fungal pathogens (9, 15). SIGNR1 also binds mouse ICAM-2, human ICAM-2 and -3, and HIV gp120 (10).

  1. Marshall, A.S.J. and S. Gordon (2004) Eur. J. Immunol. 34:18.
  2. Cambi, A. and C.G. Figdor (2005) Curr. Opin. Immunol. 17:345.
  3. McGreal, E.P. et al. (2005) Curr. Opin. Immunol. 17:18.
  4. Park, C.G. et al. (2001) Int. Immunol. 13:1283.
  5. Parent, S.A. et al. (2002) Gene 293:33.
  6. Kang, Y.-S. et al. (2003) Int. Immunol. 15:177.
  7. Feinberg, H. et al. (2005) J. Biol. Chem. 280:1327.
  8. Galustian, C. et al. (2003) Int. Immunol. 16:853.
  9. Taylor, P.R. et al. (2004) J. Immunol. 172:1157.
  10. Geijtenbeek, T.B.H. et al. (2002) Blood 100:2908.
  11. Koppel, E.A. et al. (2005) Eur. J. Immunol. 35:2962.
  12. Lanoue, A. et al. (2004) J. Exp. Med. 200:1383.
  13. Kang, Y.-S. et al. (2004) Proc. Natl. Acad. Sci. 101:215.
  14. Nagaoka, K. et al. (2005) Int. Immunol. 17:827.
  15. Takahara, K. et al. (2003) Int. Immunol. 16:819.

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.

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Publications for SIGNR1/CD209b Antibody (AF1836)(3)

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Secondary Antibodies

 

Isotype Controls

Other Available Formats

Biotin BAF1836
Phycoerythrin FAB1836P

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Bioinformatics

Gene Symbol Cd209b
Uniprot