DNAX accessory molecule-1 (DNAM-1), also known as CD226, is a 65 kDa type I transmembrane glycoprotein in the immunoglobulin superfamily (1). Mature human DNAM-1 contains a 236 amino acid (aa) extracellular domain (ECD) with two Ig-like C2-set domains and a 61 aa cytoplasmic region that contains motifs for binding PDZ domains and band 4.1 family proteins (1, 2). Within the ECD, human DNAM-1 shares 50% and 52% aa sequence identity with mouse and rat DNAM-1, respectively. DNAM-1 is expressed on multiple lymphoid and myeloid cells and interacts with CD155/PVR and Nectin-2/CD112 (3, 4). Ligation of DNAM-1 promotes the activation of NK cells, CD8+ T cells, and mast cells (2‑6), dendritic cell maturation, megakaryocyte and activated platelet adhesion to vascular endothelial cells, and monocyte extravasation; it inhibits the forrmation of osteoclasts (7‑10). Platelet-endothelium interactions mediated by DNAM-1 enable the metastasis of tumor cells to the lung (11). In activated, but not in resting NK, T, and mast cells, the cis association of DNAM-1 with CD18 contributes to the tyrosine and serine phosphorylation of DNAM-1 during activation (6, 9, 12‑14).
Human DNAM-1/CD226 Antibody
R&D Systems | Catalog # AF666
Key Product Details
Species Reactivity
Human
Applications
Western Blot, Neutralization
Label
Unconjugated
Antibody Source
Polyclonal Goat IgG
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Product Specifications
Immunogen
Mouse myeloma cell line NS0-derived recombinant human DNAM-1/CD226
Glu19-Asn247
Accession # Q15762
Glu19-Asn247
Accession # Q15762
Specificity
Detects human DNAM-1/CD226 in direct ELISAs and Western blots.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Scientific Data Images for Human DNAM-1/CD226 Antibody
Cell Adhesion Mediated by DNAM-1/CD226 and Neutral-ization by Human DNAM-1/ CD226 Antibody.
Recombinant Human DNAM-1/CD226 Fc Chimera (Catalog # 666-DN), immobilized onto a microplate, supports the adhesion of the COLO 205 human colorectal adenocarcinoma cell line in a dose-dependent manner (orange line). Adhesion elicited by Recombinant Human DNAM-1/CD226 Fc Chimera (20 µg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human DNAM-1/ CD226 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF666). The ND50 is typically 0.5-1.5 µg/mL.Applications for Human DNAM-1/CD226 Antibody
Application
Recommended Usage
Western Blot
0.1 µg/mL
Sample: Recombinant Human DNAM-1/CD226 Fc Chimera (Catalog # 666-DN)
Sample: Recombinant Human DNAM-1/CD226 Fc Chimera (Catalog # 666-DN)
Neutralization
Measured by its ability to neutralize DNAM‑1-mediated adhesion of the COLO 205 human colorectal adenocarcinoma cell line. Shibuya, A. et al. (1996) Immunity 4:573. The Neutralization Dose (ND50) is typically 0.5-1.5 µg/mL in the presence of 20 µg/mL Recombinant Human DNAM-1/CD226 Fc Chimera.
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & 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.
Calculators
Background: DNAM-1/CD226
References
- Fuchs, A. and M. Colonna (2006) Semin. Cancer Biol. 16:359.
- Shibuya, A. et al. (1996) Immunity 4:573.
- Bottino, C. et al. (2003) J. Exp. Med. 198:557.
- Tahara-Hanaoka, S. et al. (2004) Int. Immunol. 16:533.
- Dardalhon, V. et al. (2005) J. Immunol. 175:1558.
- Bachelet, I. et al. (2006) J. Biol. Chem. 281:27190.
- Reymond, N. et al. (2004) J. Exp. Med. 199:1331.
- Kakehi, S. et al. (2007) Mol. Cell. Biochem. 301:209.
- Kojima, H. et al. (2003) J. Biol. Chem. 278:36748.
- Tahara-Hanaoka, S. et al. (2006) Blood 107:1491.
- Morimoto, K. et al. (2007) Oncogene July 16 epub.
- Shibuya, K. et al. (1999) Immunity 11:615.
- Shibuya, K. et al. (2003) J. Exp. Med. 198:1829.
- Shibuya, A. et al. (1998) J. Immunol. 166:1671.
Long Name
DNAX Accessory Molecule 1
Alternate Names
CD226, DNAM1, PTA1, TLiSA1
Gene Symbol
CD226
UniProt
Additional DNAM-1/CD226 Products
Product Documents for Human DNAM-1/CD226 Antibody
Certificate of Analysis
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Product Specific Notices for Human DNAM-1/CD226 Antibody
For research use only
Citations for Human DNAM-1/CD226 Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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