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InVivoPlus anti-mouse PD-1 (CD279)
Clone Catalog # Category
J43 BP0033-2 InVivoPlus Antibodies
$390 - 4000

The J43 monoclonal antibody reacts with mouse PD-1 (programmed death-1) also known as CD279. PD-1 is a 50-55 kDa cell surface receptor encoded by the Pdcd1 gene that belongs to the CD28 family of the immunoglobulin superfamily. PD-1 is transiently expressed on CD4 and CD8 thymocytes as well as activated T and B lymphocytes and myeloid cells. PD-1 expression declines after successful elimination of antigen. Additionally, Pdcd1 mRNA is expressed in developing B lymphocytes during the pro-B-cell stage. PD-1’s structure includes a ITIM (immunoreceptor tyrosine-based inhibitory motif) suggesting that PD-1 negatively regulates TCR signals. PD-1 signals via binding its two ligands, PD-L1 and PD-L2 both members of the B7 family. Upon ligand binding, PD-1 signaling inhibits T-cell activation, leading to reduced proliferation, cytokine production, and T-cell death. Additionally, PD-1 is known to play key roles in peripheral tolerance and prevention of autoimmune disease in mice as PD-1 knockout animals show dilated cardiomyopathy, splenomegaly, and loss of peripheral tolerance. Induced PD-L1 expression is common in many tumors including squamous cell carcinoma, colon adenocarcinoma, and breast adenocarcinoma. PD-L1 overexpression results in increased resistance of tumor cells to CD8 T cell mediated lysis. In mouse models of melanoma, tumor growth can be transiently arrested via treatment with antibodies which block the interaction between PD-L1 and its receptor PD-1. For these reasons anti-PD-1 mediated immunotherapies are currently being explored as cancer treatments. The J43 antibody has been shown to block the binding of both mouse PD-L1-Ig and mouse PD-L2-Ig to PD-1.

Isotype

Armenian Hamster IgG

Recomended Isotype Control(s) InVivoPlus polyclonal Armenian hamster IgG
Recommended InVivoPure Dilution Buffer InVivoPure pH 6.5 Dilution Buffer
Immunogen

Syrian Hamster BKH cells transfected with mouse PD-1 cDNA

Reported Applications
  • in vivo blocking of PD-1/PD-L signaling
  • in vitro PD-1 neutralization
  • Western blot
Endotoxin
  • <1EU/mg (<0.001EU/μg)
  • Determined by LAL gel clotting assay
Purity
  • >95%
  • Determined by SDS-PAGE
Aggregation
  • <5%
  • Determined by DLS
Formulation
  • PBS, pH 6.5
  • Contains no stabilizers or preservatives
Sterility

0.2 μM filtered

Production

Purified from tissue culture supernatant in an animal free facility

Purification

Protein G

Storage

Undiluted at 4°C in the dark

Murine Pathogen Test Results
  • Mouse Norovirus: Negative
  • Mouse Parvovirus: Negative
  • Mouse Minute Virus: Negative
  • Mouse Hepatitis Virus: Negative
  • Reovirus Screen: Negative
  • Lymphocytic Choriomeningitis virus: Negative
  • Lactate Dehydrogenase-Elevating Virus: Negative
  • Mouse Rotavirus: Negative
  • Theiler's Murine Encephalomyelitis: Negative
  • Ectromelia/Mousepox Virus: Negative
  • Hantavirus: Negative
  • Polyoma Virus: Negative
  • Mouse Adenovirus: Negative
  • Sendai Virus: Negative
  • Mycoplasma Pulmonis: Negative
  • Pneumonia Virus of Mice: Negative
  • Mouse Cytomegalovirus: Negative
  • K Virus: Negative