Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

Flow Cytometry

Cited:

Flow Cytometry

Label

Allophycocyanin (Excitation = 620-650 nm, Emission = 660-670 nm)

Antibody Source

Monoclonal Mouse IgG2B Clone # 709116
View all ULBP-4/RAET1E Primary Antibodies »

Product Specifications

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.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2B

Scientific Data Images for Human ULBP‑4/RAET1E APC‑conjugated Antibody

Detection of ULBP-4/RAET1E antibody in HepG2 Human Cell Line antibody by Flow Cytometry.

Detection of ULBP‑4/RAET1E in HepG2 Human Cell Line by Flow Cytometry.

HepG2 human hepatocellular carcinoma cell line was stained with Mouse Anti-Human ULBP‑4/RAET1E APC‑conjugated Monoclonal Antibody (Catalog # FAB6285A, filled histogram) or isotype control antibody (Catalog # IC0041A, open histogram). View our protocol for Staining Membrane-associated Proteins.

Applications for Human ULBP‑4/RAET1E APC‑conjugated Antibody

Application
Recommended Usage

Flow Cytometry

10 µL/106 cells
Sample: HepG2 human hepatocellular carcinoma cell line

Reviewed Applications

Read 1 review rated 4 using FAB6285A in the following applications:

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

Supplied in a saline solution containing BSA and Sodium Azide.

Shipping

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

Stability & Storage

Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: ULBP-4/RAET1E

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 delta T cells, and CD8+ alpha beta T cells, activating cytolytic activity and/or cytokine production (3, 4, 7). In some gamma delta T cells, direct ULBP-4 binding to both TCR gamma delta and NKG2D has been demonstrated (6). ULBP-4 is also thought to function as a minor histocompatibility antigen in humans (1).

References

  1. Radosavljevic, M. et al. (2002) Genomics 79:114.
  2. Kondo, M. et al. (2010) Immunogenetics 62:441.
  3. Conejo-Garcia, J.R. et al. (2003) Cancer Biol. Ther. 2:446.
  4. Chalupny, N.J. et al. (2003) Biochem. Biophys. Res. Commun. 305:129.
  5. Cao, W. et al. (2007) J. Biol. Chem. 282:18922.
  6. Kong, Y. et al. (2009) Blood 114:310.
  7. Bacon, L. et al. (2004) J. Immunol. 173:1078.
  8. Cao, W. et al. (2008) Int. Immunol. 20:981.

Long Name

UL16 Binding Protein-4

Alternate Names

LETAL, N2DL-4, N2DL4, NKG2DL4, RAET1E, RL-4, ULBP4

Entrez Gene IDs

135250 (Human); 379043 (Mouse); 292461 (Rat)

Gene Symbol

RAET1E

UniProt

Q8TD07 (Human)

Additional ULBP-4/RAET1E Products

Product Documents for Human ULBP‑4/RAET1E APC‑conjugated Antibody

Certificate of Analysis

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Product Specific Notices for Human ULBP‑4/RAET1E APC‑conjugated Antibody

For research use only

Related Research Areas

NKG2D Receptors and Ligands

Citations for Human ULBP‑4/RAET1E APC‑conjugated Antibody

Customer Reviews for Human ULBP‑4/RAET1E APC‑conjugated Antibody (1)

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  • Human ULBP-4/RAET1E APC-conjugated Antibody
    Name: Anonymous
    Application: Flow Cytometry
    Sample Tested: iDC human immature myeloid dendritic cells
    Species: Human
    Verified Customer | Posted 03/13/2018
    - light blue lines represents Isotype APC - purple dotted line represents no stain - red lines represents anti human ULBP4 APC antibody
    Human ULBP‑4/RAET1E APC‑conjugated Antibody FAB6285A

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