- 3D6.112 (See other available formats)
- Other Names
- Sialic acid binding Ig-like lectin 1 (Siglec-1), Sialoadhesin (Sn)
- Rat IgG2a, κ
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- Product Citations
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CD169, also known as Siglec-1 and Sialoadhesin (Sn), is a type I lectin containing 17 immunoglobulin (Ig) domains (one variable domain and 16 constant domains). CD169 binds to sialic acids, which can be found on PSGL-1, CD43, CD206, and CD227. By its affinity to α2, 3-linked sialic acid, it is involved in macrophage binding to different cell types such as granulocytes, monocytes, NK, B, and T cells. CD169 was initially identified as a sialic acid-dependent sheep erythrocyte receptor (SER) on resident bone marrow cells of mice. It has been identified as highly expressed on resident bone marrow macrophages which plays an important role in retention of stem cells in mesenchymal stem cell niche. It is also found on some specific subsets of tissue macrophages in spleen, lymph nodes, bone marrow, liver, colon, lungs, and cancer cells. Evidence suggest that CD169-positive macrophages serve as lymph node-resident APCs to dominate early activation of tumor antigen-specific CD8+ T cells and invariant NK cell.Product Details
- Antibody Type
- Host Species
- Purified Native Sialoadhesin from spleen
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 1 mM EDTA.
- The antibody was purified by chromatography and conjugated with TotalSeq™-A oligomer under optimal conditions. The solution is free of unconjugated DNA and unconjugated antibody.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.
PG - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis and the oligomer sequence is confirmed by sequencing. For Proteogenomics TotalSeq™-A analysis, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
To maximize performance, centrifuge the antibody dilution (1.0 µg of antibody in 100 µl of staining buffer for every 1 million cells) before adding to the cells at 14,000xg at 2 - 8°C for 10 minutes. Carefully pipette out the liquid avoiding the bottom of the tube and add to the cell suspension.
Buyer is solely responsible for determining whether Buyer has all intellectual property rights that are necessary for Buyer's intended uses of the BioLegend TotalSeq™ products. For example, for any technology platform Buyer uses with TotalSeq™, it is Buyer's sole responsibility to determine whether it has all necessary third party intellectual property rights to use that platform and TotalSeq™ with that platform.
- Application Notes
Additional reported applications (for the relevant formats) include: immunohistochemical staining in frozen tissue sections1.
- Additional Product Notes
TotalSeq™ reagents are designed to profile protein levels at a single cell level following an optimized protocol similar to the CITE-seq workflow. A compatible single cell device (e.g. 10x Genomics Chromium System and Reagents) and sequencer (e.g Illumina analyzers) are required. Please contact technical support for more information, or visit biolegend.com/totalseq.
The TotalSeq™-A barcode sequence associated with clone 3D6.112 is ATTGACGACAGTCAT.
The flanking sequences are CCTTGGCACCCGAGAATTCCA, and the poly A tail, BAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA*A*A, where B represents either C, G, or T, and * indicates a phosphorothioated bond, to prevent nuclease degradation.
The full oligomer sequence for this product, with the specific barcode in brackets is CCTTGGCACCCGAGAATTCCA [ATTGACGACAGTCAT]BAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA*A*A
(PubMed link indicates BioLegend citation)
- Barral P, et al. 2010. Nat. Immunol. 11:303. (IHC-F)
- Chtanova T, et al. 2008. Immunity 29:487.
- Klass M, et al. 2012. J. Immunol. 189:2414. PubMed
AB_2783106 (BioLegend Cat. No. 142425)
- Type I single membrane-spanning lectin containing 17 immunoglobulin (Ig) domains, belongs to the immunoglobulin superfamily.
Macrophages in spleen, lymph nodes, bone marrow, liver, colon and lungs.
- Ligand Receptor
- PSGL-1, CD43, CD206 and CD227.
- Cell Type
- Biology Area
- Cell Biology, Immunology
- Molecular Family
- Adhesion Molecules, CD Molecules, Protein Kinases/Phosphatase, Siglec Molecules
- Antigen References
1. Chow A, et al. 2011. J. Exp. Med. 208:261.
2. Asano K, et al. 2011. Immunity 34:85.
3. Xiong YS, et al. 2009. Clin. Biochem. 42:1057.
4. Varki A, et al. 2009. Glycoconj. J. 26:231.
5. Rempel H, et al. 2008. PLoS One 3:e1967.
6. Crocker PR, et al. 2001. Trends Immunol. 22:337.
7. Hartnell A, et al. 2001. Blood 97:288.
8. Crocker PR, et al. 1985. J. Exp. Med. 162:993.
- Gene ID
- 20612 View all products for this Gene ID
- View information about CD169 on UniProt.org
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