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Key Documents

MABF3126

Sigma-Aldrich

Anti-DR4/CD261 Antibody, clone DJR1

Synonym(s):

Death receptor 4, TNF-related apoptosis-inducing ligand receptor 1, TRAIL receptor 1, TRAIL-R1, Tumor necrosis factor receptor superfamily member 10A

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

DJR1, monoclonal

mol wt

calculated mol wt 50.09 kDa

purified by

using protein G

species reactivity

human

packaging

antibody small pack of 100 μg

technique(s)

flow cytometry: suitable

isotype

IgG1κ

epitope sequence

Extracellular domain

Protein ID accession no.

UniProt accession no.

storage temp.

2-8°C

Gene Information

General description

Tumor necrosis factor receptor superfamily member 10A (UniProt: O00220; also known as Death receptor 4, TNF-related apoptosis-inducing ligand receptor 1, TRAIL receptor 1, TRAIL-R1, CD261) is encoded by the TNFRSF10A (also known as APO2, DR4, TRAILR1) gene (Gene ID: 8797) in human. CD261/DR4 is a single-pass type I membrane protein, which is synthesized with a signal peptide (aa 1-23) that is subsequently cleaved off to produce the mature protein that contains an extracellular domain (aa 24-239), a transmembrane domain (aa 240-262), and a cytoplasmic domain (aa 263-468). It is widely expressed with high levels observed in spleen, peripheral blood leukocytes, small intestine, and thymus. TRAIL receptors (DR4 and DR5) induce apoptosis via caspase activation. The adapter molecule FADD is reported to recruit caspase-8 to the activated receptor. The resulting death-inducing signaling complex (DISC) performs caspase-8 proteolytic activation that initiates the subsequent cascade of caspases mediating apoptosis. O-GlcNAcylation of DR4 is reported to be crucial for TRAIL death signaling. Both TRAIL-sensitive and TRAIL-resistant breast cancer cell lines can be efficiently killed by overexpression of the CD261/DR4. However, the extent of cell death depends on the strength of the promoter driving DR4 expression. (Ref.: Lee, H., et al. (2019). Cancer Res. 79; 2839-2852; Kazhdan, I., and Marciniak, RA (2004). Cancer Gene Ther. 11(10); 691-698).

Specificity

Clone DJR1 is a mouse monoclonal antibody that detects DR4/CD261. It targets an epitope within the extracellular domain.

Immunogen

Recombinant fragment corresponding to the extracellular domain of human DR4/CD261 Fc fusion protein.

Application

Quality Control Applications

Evaluated by Flow Cytometry in BHK cells transfected with Human DR4.

Flow Cytometry Analysis: 1.0 µg of this antibody detected DR4/CD261 in BHK cells transfected with Human DR4.

Tested applications

Flow Cytometry: A representative lot detected DR4/CD261 in Flow Cytometry applications (Uno, K., et al. (2003). Blood. 101(9); 3658-67; Lee, H., et al. (2019). Cancer Res. 79(11); 2839-2852).

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user.

Physical form

Purified mouse monoclonal antibody IgG1 in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Recommended storage: +2°C to +8°C.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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