$541.00 - $7,325.00

$541.00 - $7.00

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  • 25 mg - $7,325.00
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Product Description

The recombinant DTA-1-CP031 monoclonal antibody is a chimeric version of the original DTA-1 antibody. The variable domain sequences are identical to the original DTA-1 but the constant region sequences have been switched from rat IgG2b, lambda to mouse IgG2b, kappa. The DTA-1-CP031 antibody also contains LALA-PG mutations in the heavy chain Fc fragment rendering it unable to bind to endogenous murine Fcγ receptors. Published studies demonstrate the original rat DTA-1 antibody can result in anaphylaxis in mice upon repeated intraperitoneal dosing due to the generation of an anti-idiotypic anti-drug Ab immune response. Chimerization of DTA-1 with a murine constant region results in reduced development and severity of anaphylaxis in mice but does not affect T cell agonistic properties or in vivo antitumor efficacy. The DTA-1-CP031 antibody reacts with mouse GITR (glucocorticoid-induced TNFR-related gene), a 66-70 kDa co-stimulatory immune checkpoint molecule belonging to the Tumor Necrosis Factor superfamily (TNFRSF18). GITR is expressed at low levels on resting T lymphocytes and at high levels on regulatory T cells. GITR is upregulated on activated T cells where it provides co-stimulation. GITR is thought to play a key role in dominant immunological self-tolerance maintained by regulatory T cells. Knockout studies in mice suggest the role of this receptor is in the regulation of CD3-driven T cell activation and programmed cell death. The DTA-1 antibody is an agonistic antibody that is commonly used to induce GITR signaling in vivo.

Specifications

Isotype Mouse IgG2b, κ
Recommended Isotype Control(s) RecombiMAb mouse IgG2b (LALA-PG) isotype control, anti-hen egg lysozyme
Recommended Dilution Buffer InVivoPure pH 7.0 Dilution Buffer
Conjugation This product is unconjugated. Conjugation is available via our Antibody Conjugation Services.
Mutations LALA-PG
Immunogen Mouse CD25+ CD4+ T cells
Formulation PBS, pH 7.0
Contains no stabilizers or preservatives
Endotoxin ≤0.5EU/mg (≤0.0005EU/μg)
Determined by LAL gel clotting assay
Purity ≥95%
Determined by SDS-PAGE
Sterility 0.2 µm filtration
Production Purified from HEK293 cell supernatant in an animal-free facility
Purification Protein G
Molecular Weight 150 kDa
Storage The antibody solution should be stored at the stock concentration at 4°C. Do not freeze.
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Product FAQs

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