Dectin-1, also known as CLEC7A and the beta -glucan receptor, is a 33 kDa type II transmembrane C-type lectin that participates in the innate immune response to fungal pathogens. Although Dectin-1 structurally resembles other CLEC molecules, it binds its ligands in a calcium-independent manner (1, 2). Mature human Dectin-1 consists of a short N-terminal ITAM-containing cytoplasmic tail, a transmembrane segment, and a C-terminal stalk with a carbohydrate recognition domain (CRD) in the extracellular domain (3, 4). Alternate splicing generates one major splice form that lacks the stalk region (3 - 5). This isoform is expressed on the surface of monocytes, macrophages, myeloid DC, neutrophils, eosinophils, B cells, and CD4+ T cells (6). The CRD selectively binds beta -glucan polymers, a major component of yeast and mycobacterial cell walls (5 - 7). Yeast beta -glucan is accessible to Dectin-1 only during the process of cell budding. Dectin-1 does not recognize the filamentous form of yeast (8). Dectin-1 mediates the phagocytosis of zymosan particles and intact yeast (8 - 10). In the membrane, Dectin-1 colocalizes with TLR2 in the presence of zymosan, and the two receptors cooperate in ligand recognition and the propagation of proinflammatory signaling (9, 11 - 13). Dectin-1 also interacts with tetraspanin CD37. This increases its stability on the cell membrane and inhibits ligand-induced signaling (14). Dectin-1 knockout mice show increased susceptibility to pathogenic infection (15 - 16). The CRD of human Dectin-1 shares 77%, 60%, and 60% amino acid (aa) sequence identity with that of bovine, mouse and rat Dectin-1, respectively. It shares 29% - 39% aa sequence identity with the CRD of other subgroup members, including CLEC-1, CLEC-2, CLEC9A, CLEC12B, LOX-1, and MICL.
Recombinant Human Dectin-1/CLEC7A Protein, CF
R&D Systems | Catalog # 1859-DC
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Key Product Details
- R&D Systems NS0-derived Recombinant Human Dectin-1/CLEC7A Protein (1859-DC)
- Quality control testing to verify active proteins with lot specific assays by in-house scientists
- All R&D Systems proteins are covered with a 100% guarantee
Source
NS0
Accession Number
Applications
Binding Activity
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Product Specifications
Source
Mouse myeloma cell line, NS0-derived human Dectin-1/CLEC7A protein
Thr66-Met201, with an N-terminal 10-His tag
Thr66-Met201, with an N-terminal 10-His tag
Purity
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
His
Predicted Molecular Mass
16.8 kDa
Activity
Measured by its ability to bind biotinylated Laminarin (1, 3-beta -glucan) in a functional ELISA with an estimated KD <5 nM.
Reviewed Applications
Read 2 reviews rated 4.5 using 1859-DC in the following applications:
Formulation, Preparation, and Storage
1859-DC
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS.
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| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Calculators
Background: Dectin-1/CLEC7A
References
- Kanazawa, N. (2007) J. Dermatol. Sci. 45:77.
- Brown, G.D. (2006) Nat. Rev. Immunol. 6:33.
- Hernanz-Falcon, P. et al. (2001) Immunogenetics 53:288.
- Yokota, K. et al. (2001) Gene 272:51.
- Willment, J.A. et al. (2001) J. Biol. Chem. 276:43818.
- Willment, J.A. et al. (2005) Eur. J. Immunol. 35:1539.
- Palma, A.S. et al. (2006) J. Biol. Chem. 281:5771.
- Gantner, B.N. et al. (2005) EMBO J. 24:1277.
- Gantner, B.N. et al. (2003) J. Exp. Med. 197:1107.
- Kennedy, A.D. et al. (2007) Eur. J. Immunol. 37:467.
- Brown, G.D. et al. (2003) J. Exp. Med. 197:1119.
- Yadav, M. and J.S. Schorey (2006) Blood 108:3168.
- Suram, S. et al. (2006) J. Biol. Chem. 281:5506.
- Meyer-Wentrup, F. et al. (2007) J. Immunol. 178:154.
- Saijo, S. et al. (2007) Nat. Immunol. 8:39.
- Taylor, P.R. et al. (2007) Nat. Immunol. 8:31.
Alternate Names
CD369, CLEC7A, CLECSF12, Dectin1
Gene Symbol
CLEC7A
UniProt
Additional Dectin-1/CLEC7A Products
Product Documents for Recombinant Human Dectin-1/CLEC7A Protein, CF
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Recombinant Human Dectin-1/CLEC7A Protein, CF
For research use only
Related Research Areas
Citations for Recombinant Human Dectin-1/CLEC7A Protein, CF
Customer Reviews for Recombinant Human Dectin-1/CLEC7A Protein, CF (2)
4.5 out of 5
2 Customer Ratings
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