Recombinant Human DC-SIGN/CD209 Fc Chimera Protein, CF Summary
A New and Improved rh DC-SIGN is Now Available! The new protein has enhanced purity and a HA-tag!
Details of Functionality
Measured by the ability of the immobilized protein to support the adhesion of ICAM-3 expressing CHO Chinese hamster ovary cells. When 5 x 104 cells/well are added to Recombinant Human DC‑SIGN/CD209 Fc Chimera coated plates (5 µg/mL with 100 µL/well), approximately 50-80% of added cells will adhere after 1 hour at room temperature. Optimal dilutions should be determined by each laboratory for each application.
Mouse myeloma cell line, NS0-derived human DC-SIGN/CD209 protein
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
<0.10 EU per 1 μg of the protein by the LAL method.
65.7 kDa (monomer). Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Human Dendritic Cell-specific ICAM-3 Grabbing Non-integrin (DC-SIGN)/CD209 is a member of the C-type lectin family (1). The canonical DC-SIGN/CD209 isoform is a 46 kDa, 404 amino acid (aa) type II transmembrane protein (2). The extracellular region contains a Ca2+-dependent carbohydrate-binding lectin domain (2). Multiple human DC-SIGN/CD209 splice forms exist, generating both membrane-bound and soluble forms (3). DC-SIGN/CD209 is not well conserved between mouse and human, with the extracellular domain sharing only 63% aa identity. The DC-SIGN/CD209 lectin domain binds mannose oligosaccharides on pathogens including HIV as well as self glycoproteins including ICAMs (2, 4). DC-SIGN/CD209 is expressed on dendritic cells (DC) and inflammatory macrophages and contributes to antigen presentation (5, 6).
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Mummidi, S. et al. (2001) J. Biol. Chem. 276:33196.
Anthony, R.M. et al. (2008) Proc. Natl. Acad. Sci. USA 105:19571.
Geijtenbeek, T.B. et al. (2000) Cell 100:575.
Garcia-Vallejo, J.J. and Y. van Kooyk (2013) Trends Immunol. 34:482.
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PRODUCT AVAILABILITY: Update Regarding the Evolving COVID-19 Situation
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