CTLA-4 Antibody (63828)

Images

 
Recombinant Mouse CTLA‑4 Fc Chimera (Catalog # 434-CT) inhibits Recombinant Human B7‑1/CD80 Fc Chimera (Catalog # 140-B1) induced IL‑2 secretion in the Jurkat human acute T cell leukemia ...read more

Product Details

Summary
Reactivity MuSpecies Glossary
Applications WB, Flow, B/N, CyTOF-ready
Clone
63828
Clonality
Monoclonal
Host
Rat
Conjugate
Unconjugated

CTLA-4 Antibody (63828) Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse CTLA-4
Ala36-Phe161
Accession # XP_001479180
Specificity
Detects mouse CTLA-4 in direct ELISAs and Western blots. In direct ELISAs, this antibody does not cross-react with recombinant mouse (rm) CD28, recombinant human CTLA-4, rmICOS, or rmPD-1.
Source
N/A
Isotype
IgG2a
Clonality
Monoclonal
Host
Rat
Gene
CTLA4
Purity
Protein A or G purified from hybridoma culture supernatant
Endotoxin Note
<0.10 EU per 1 μg of the antibody by the LAL method.
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot 1 ug/mL
  • Flow Cytometry 2.5 ug/10^6 cells
  • CyTOF-ready
  • Neutralization 2.5-10 ug/mL
Control
CTLA-4 Knockout HeLa Cell Lysate
Publications
Read Publication using
MAB434 in the following applications:

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Purity
Protein A or G purified from hybridoma culture supernatant
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for CTLA-4 Antibody (63828)

  • CD
  • CD152 antigen
  • CD152
  • CD152IDDM12
  • CD28
  • celiac disease 3
  • CELIAC3
  • CTLA4
  • CTLA-4
  • cytotoxic T-lymphocyte antigen 4
  • cytotoxic T-lymphocyte protein 4
  • Cytotoxic T-lymphocyte-associated antigen 4
  • cytotoxic T-lymphocyte-associated protein 4
  • cytotoxic T-lymphocyte-associated serine esterase-4
  • GRD4
  • GSE
  • ICOS
  • ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4

Background

CTLA-4 and CD28, together with their ligands B7-1 and B7-2, constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CTLA-4 and CD28 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. Both CTLA-4 and CD28 are composed of a single Ig V‑like extracellular domain, a transmembrane domain and an intracellular domain. CTLA-4 and CD28 are both expressed on the cell surface as disulfide-linked homodimers or as monomers. The genes encoding these two molecules are closely linked on human chromosome 2. CTLA-4 was originally identified as a gene that was specifically expressed by cytotoxic T lymphocytes. However, CTLA-4 transcripts have since been found in both Th1 and Th2, and CD4+ and CD8+ T cell clones. Whereas, CD28 expression is constitutive on the surfaces of 95% of CD4+ T cells and 50% of CD8+ T cells and is down regulated upon T cell activation, CTLA-4 expression is upregulated rapidly following T cell activation and peaks approximately 24 hours following activation. Although both CTLA-4 and CD28 can bind to the same ligands, CTLA-4 binds to B7-1 and B7-2 with 20-100-fold higher affinity than CD28. The physiological role of CTLA-4 in T cell costimulation is currently being studied. Recombinant human or mouse CTLA-4/Fc chimera preparations produced at R&D Systems have been shown to bind both B7-1 and B7-2 with high affinity and to inhibit CD28 signalling competitively.

  1. Lenschow, D.J. et al. (1996) Annu. Rev. Immunol. 14:233.
  2. Hathcock, K.S. and R.J. Hodes (1996) Advances in Immunol. 62:131.
  3. Ward, S.G. (1996) Biochem. J. 318:361.

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 CTLA-4 Antibody (MAB434)(1)

We have publications tested in 1 confirmed species: Mouse.

We have publications tested in 1 application: Functional Assay.


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Bioinformatics

Gene Symbol CTLA4
Uniprot