Catalog #CP090
RecombiMAb anti-mouse CD4
Clone
GK1.5-CP090
Reactivities
Mouse
Isotype
Mouse IgG2a, kappa
(switched from rat IgG2b)
(switched from rat IgG2b)
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Product Description
The GK1.5-CP090 monoclonal antibody is a recombinant, Fc-engineered chimeric version of the original GK1.5 antibody. The variable domain sequences are identical but the constant region sequences have been switched from rat IgG2b to mouse IgG2a for use in murine models. Species-matched chimeric antibodies exhibit regulated effector functions—including Fc receptor binding and complement activation—and result in less immunogenicity and formation of anti-drug antibodies (ADAs) than xenogenic antibodies in animal models. This antibody has an effector function competent Fc domain allowing for activation of Fcγ receptors (FcγRs) to trigger antibody‑dependent cellular cytotoxicity (ADCC), antibody‑dependent cellular phagocytosis (ADCP), complement‑dependent cytotoxicity (CDC) and opsonization to promote target cell depletion. The mouse IgG2a isotype demonstrates strong effector functions due to potent interaction with mFcγRIV, which is functionally similar to the FcγRIIIa receptor involved in human ADCC. The highly controlled sequence and lack of genetic drift in recombinant antibodies provide more reliable and reproducible results over hybridoma derived antibodies.
The CD4 antigen is a 55 kDa cell surface type I membrane glycoprotein belonging to the immunoglobulin superfamily. CD4 acts as a co-receptor which in cooperation with the T cell receptor (TCR) interacts with class II MHC molecules displayed by antigen presenting cells (APC). CD4 is expressed by the majority of thymocytes, most helper T cells, a subset of NK-T cells and weakly by dendritic cells and macrophages. CD4 plays an important role in the development of T cells and is required for mature T cells to function optimally.
The CD4 antigen is a 55 kDa cell surface type I membrane glycoprotein belonging to the immunoglobulin superfamily. CD4 acts as a co-receptor which in cooperation with the T cell receptor (TCR) interacts with class II MHC molecules displayed by antigen presenting cells (APC). CD4 is expressed by the majority of thymocytes, most helper T cells, a subset of NK-T cells and weakly by dendritic cells and macrophages. CD4 plays an important role in the development of T cells and is required for mature T cells to function optimally.
Specifications
| Isotype | Mouse IgG2a, κ |
|---|---|
| Recommended Isotype Control(s) | RecombiMAb mouse IgG2a 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. |
| Immunogen | Mouse CTL clone V4 |
| Reported Applications |
in vivo CD4+ T cell depletion* Flow cytometry* Western blot* *Reported for the original rat IgG2b GK1.5 antibody |
| Formulation |
PBS, pH 7 Contains no stabilizers or preservatives |
| Endotoxin |
≤0.5EU/mg (≤0.0005EU/μg) Determined by LAL assay |
| Aggregation* | <5%, Determined by SEC |
| Purity |
≥95% Determined by SDS-PAGE |
| Sterility | 0.2 µm filtration |
| Production | Purified from mammalian cell supernatant in an animal-free facility |
| Purification | Protein G |
| Molecular Weight | 150 kDa |
| Murine Pathogen Tests |
Ectromelia/Mousepox Virus: Negative Hantavirus: Negative K Virus: Negative Lactate Dehydrogenase-Elevating Virus: Negative Lymphocytic Choriomeningitis virus: Negative Mouse Adenovirus: Negative Mouse Cytomegalovirus: Negative Mouse Hepatitis Virus: Negative Mouse Minute Virus: Negative Mouse Norovirus: Negative Mouse Parvovirus: Negative Mouse Rotavirus: Negative Mycoplasma Pulmonis: Negative Pneumonia Virus of Mice: Negative Polyoma Virus: Negative Reovirus Screen: Negative Sendai Virus: Negative Theiler’s Murine Encephalomyelitis: Negative |
| Storage | The antibody solution should be stored at the stock concentration at 4°C. Do not freeze. |
| Need a Custom Formulation? | See All Antibody Customization Options |