Human Dectin-1/CLEC7A Alexa Fluor® 405-conjugated Antibody

FAB1859V Datasheet / COA / SDS

Clone 259931 was used by HLDA to establish CD designation

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FAB1859V-100UG

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Human Dectin-1/CLEC7A Alexa Fluor® 405-conjugated Antibody Summary

Species Reactivity

Human

Specificity

Detects human Dectin‑1/CLEC7A in direct ELISAs. In directs ELISAs, less than 10% cross-reactivity with recombinant human (rh) DLEC and no cross-reactivity with recombinant mouse Dectin-1 or rhDectin-2 is observed.

Source

Monoclonal Mouse IgG2b Clone # 259931

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Dectin‑1/CLEC7A
Thr66-Met201
Accession # NP_072092

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Label

Alexa Fluor 405 (Excitation= 405 nm, Emission= 421 nm)

Applications

Recommended Concentration

Sample

Flow Cytometry

0.25-1 µg/10⁶ cells

Human whole blood monocytes

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: Dectin-1/CLEC7A

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.

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.

Entrez Gene IDs

64581 (Human); 56644 (Mouse)

Alternate Names

Beta-glucan receptor; BGR; CD369; CLEC7A; CLECSF12; CLECSF12DC-associated C-type lectin 1; C-type (calcium dependent, carbohydrate-recognition domain) lectin, superfamilymember 12; C-type lectin domain family 7 member A; C-type lectin domain family 7, member A; C-type lectin superfamily member 12; Dectin1; Dectin-1; DECTIN1CANDF4; Dendritic cell-associated C-type lectin 1; dendritic cell-associated C-type lectin-1; hDectin-1; lectin-like receptor 1