ULBP-2/5/6 Antibody (165903) [Alexa Fluor™ Plus 680]

• Reactivity: Hu
• Clone: 165903
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Alexa Fluor Plus 680

ULBP-2/5/6 Antibody (165903) [Alexa Fluor™ Plus 680] Summary

• Specificity: Detects human ULBP-2 and human RAET1L/ULBP-6 in direct ELISA and stains cells transfected with human ULBP-2, human ULBP-5 or human RAET1L/ULBP-6 in flow cytometry. In direct ELISA, 11% cross‑reactivity with recombinant human ULBP5 is observed. It does not stain cells transfected with human ULBP-1 or human ULBP-3 in flow cytometry.
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Mouse

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for ULBP-2/5/6 Antibody (165903) [Alexa Fluor™ Plus 680]

• ALCAN-alpha
• N2DL2
• NKG2DL2
• RAET1H
• RAET1L
• UL16 binding protein 2
• ULBP2
• ULBP-2/5/6

Background

ULBPs activate multiple signaling pathways in primary NK cells, resulting in the production of cytokines and chemokines. Binding of ULBPs ligands to NKG2D induces calcium mobilization and activation of the JAK2, STAT5, ERK and PI3K kinase/Akt signal transduction pathway. The name ULBP derives from the original identification of three proteins, ULBP-1, -2, and -3, as ligands for the human cytomegalovirus glycoprotein UL16; they were designated UL16 binding proteins (ULBP). The genes for ULBPs reside in a cluster of ten related genes, six of which encode potentially functional glycoproteins. ULBP-2 has also been described under the names RaeT1H (retinoic acid early transcript), NKG2DL2, and ALCAN-alpha. ULBP-5 also known as RaeT1G and ULBP-6 also known as RaeT1L. These proteins are distantly related to MHC class I proteins, but they possess only the alpha 1 and alpha 2 Ig-like domains, and they have no capacity to bind peptide or interact with beta 2‑microglobulin. Some family members, including ULBP-2, are anchored to the membrane via a GPI-linkage, whereas others have transmembrane domains. Engagement of NKG2D results in the activation of cytolytic activity and/or cytokine production by these effector cells. The ULBPs are expressed on some tumor cells and have been implicated in tumor surveillance. Over aa 26-217, ULBP-2 shares 92% and 95% aa sequence identity with the human ULBP-5 and ULBP-6, respectively.

1. Cosman, D. et al. (2001) Immunity 14:123.
2. Kubin, M. et al. (2001) Eur. J. Immunol. 31:1428.
3. Sutherland, C. et al. (2002) J. Immunol. 168:671.
4. Steinle, A. et al. (2001) Immunogenetics 53:279.
5. Sutherland, C. et al. (2001) Immunol. Rev. 181:185.
6. Pende, D. et al. (2002) Cancer Res. 62:6178.
7. Radosavljevic, M. et al. (2002) Genomics 79:114.
8. NKG2D and its Ligands (2002) www.RnDSystems.com.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.