ULBP-4/RAET1E Antibody (709116) [Allophycocyanin] Summary
Immunogen |
Mouse myeloma cell line NS0-derived recombinant human ULBP‑4/RAET1E Gly30-Asp225 Accession # Q8TD07 |
Specificity |
Detects human ULBP‑4/RAET1E in direct ELISA and Western blot. In Western blot, approximately 20% cross‑reactivity with recombinant human (rh) ULBP-2 is observed and no cross-reactivity with rhULBP‑1 or rhULBP-3 is observed. |
Source |
N/A |
Isotype |
IgG2b |
Clonality |
Monoclonal |
Host |
Mouse |
Gene |
RAET1E |
Purity Statement |
Protein A or G purified from hybridoma culture supernatant |
Innovator's Reward |
Test in a species/application not listed above to receive a full credit towards a future purchase. |
Applications/Dilutions
Dilutions |
- Flow Cytometry 10 uL/10^6 cells
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Publications |
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Packaging, Storage & Formulations
Storage |
Protect from light. Do not freeze.- 12 months from date of receipt, 2 to 8 °C as supplied.
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Buffer |
Supplied in a saline solution containing BSA and Sodium Azide. |
Preservative |
Sodium Azide |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for ULBP-4/RAET1E Antibody (709116) [Allophycocyanin]
Background
ULBP-4 (cytomegalovirus glycoprotein UL16 binding protein 4), also called RAET1E (retinoic acid early transcript 1E), Letal (lymphocyte effector cell toxicity activating ligand) and NKG2DL4 (NKG2D ligand 4), is a 40-50 kDa member of the ULBP/RAET1 family of cell surface proteins that function as ligands for NKG2D (1‑6). While most family members are GPI-anchored, only ULBP-4/RAET1E and ULBP-5/RAET1G express a transmembrane form (1, 4, 6, 7). Human ULBP-4 mRNA encodes 263 amino acids (aa) including a 30 aa signal sequence, a 195 aa extracellular domain (ECD), a 23 aa transmembrane domain, and a 15 aa cytoplasmic sequence. A soluble 35 kDa form diverges at aa 208 and is thought to antagonize the transmembrane form (5). Other potential splice variants of 220, 227 and 280 aa are transmembrane proteins (8). Within the ECD, ULBP-4 shares 34-41% aa sequence identity with family members (1, 7). Rodent NKG2D ligands Rae-1 alpha -epsilon are, like human ULBP and MIB proteins, distantly related to MHC class I proteins, but none of the families share significant sequence identity (2, 4). Low expression of ULBP‑4 mRNA is found in normal tissues, with high expression variably reported in the small intestine (3) and skin (4). Expression is stimulated by TNF-alpha and down‑regulated by retinoic acid (3). ULBP-4 is abnormally expressed on most colon cancer and some other tumor cell lines and virus-infected peripheral blood cells (3, 6). ULBP-4 binds and costimulates NKG2D-expressing effector cells including NK cells, NKT cells, gamma δ T cells, and CD8
+ alpha beta T cells, activating cytolytic activity and/or cytokine production (3, 4, 7). In some gamma δ T cells, direct ULBP-4 binding to both TCR gamma δ and NKG2D has been demonstrated (6). ULBP-4 is also thought to function as a minor histocompatibility antigen in humans (1).
- Radosavljevic, M. et al. (2002) Genomics 79:114.
- Kondo, M. et al. (2010) Immunogenetics 62:441.
- Conejo-Garcia, J.R. et al. (2003) Cancer Biol. Ther. 2:446.
- Chalupny, N.J. et al. (2003) Biochem. Biophys. Res. Commun. 305:129.
- Cao, W. et al. (2007) J. Biol. Chem. 282:18922.
- Kong, Y. et al. (2009) Blood 114:310.
- Bacon, L. et al. (2004) J. Immunol. 173:1078.
- Cao, W. et al. (2008) Int. Immunol. 20:981.
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.
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Publications for ULBP-4/RAET1E Antibody (FAB6285A)(2)
Showing Publications 1 -
2 of 2.
Publications using FAB6285A |
Applications |
Species |
Sofie H. Møller, Maiken Mellergaard, Mikkel Madsen, Amaia V. Bermejo, Stine D. Jepsen, Marie H. Hansen et al. Cytoplasmic Citrate Flux Modulates the Immune Stimulatory NKG2D Ligand MICA in Cancer Cells Frontiers in Immunology 2020-08-11 [PMID: 32849657] |
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Eytan Breman, Benjamin Demoulin, Sophie Agaugué, Sebastien Mauën, Alexandre Michaux, Lorraine Springuel et al. Overcoming Target Driven Fratricide for T Cell Therapy Frontiers in Immunology 2018-12-12 [PMID: 30619300] |
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FAQs for ULBP-4/RAET1E Antibody (FAB6285A) (0)
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