Application

This rat monoclonal Anti-CD4 Antibody (Mouse), redFluor^® 710, clone GK1.5, Cat. No. MABF1575 is validated for use in Flow Cytometry, for the detection of CD4.

Research Sub CategoryImmunoglobulins & Immunology

Research CategoryInflammation & Immunology

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.

General description

The GK1.5 antibody reacts with mouse CD4, a 55 kDa protein which acts as a co-receptor for the T cell receptor (TCR) in its interaction with MHC Class II molecules on antigen-presenting cells. The extracellular domain of CD4 binds to the beta-2 domain of MHC Class II, while its cytoplasmic tail provides a binding site for the tyrosine kinase lck, facilitating the signaling cascade that initiates T cell activation. CD4 is typically expressed on thymocytes, certain mature T cell populations such as Th17 and T regulatory (Treg) cells, as well as on dendritic cells.The GK1.5 antibody is widely used as a phenotypic marker for CD4 expression. If used together, the GK1.5 antibody and an alternative antibody, Anti-Mouse CD4 clone RM4-5, will “compete” for binding, i.e. RM4-5 is able to block GK1.5 binding to cells. In contrast, the Anti-Mouse CD4 clone RM4-4 does not block binding of the GK1.5 antibody to cells (Arora S et al. 2006. Infect. Immun. 74: 4339-4348). The GK1.5 antibody is also reported to be cross-reactive with Syrian hamster CD4.

Immunogen

Immunogen information for this antibody is proprietary information.

Legal Information

redFluor is a registered trademark of Tonbo Biotechnologies

Other Notes

Concentration: Please refer to lot specific datasheet.

Physical form

Purified Rat monoclonal containing 10 mM NaH2PO4, 150 mM NaCl, 0.09% NaN3, 0.1% gelatin, pH7.2.

Purified by size-exclusion chromatography

Quality

This monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.

Flow Cytometry Analysis: 0.06 µg from a representative lot detected CD4 in one million C57Bl/6 splenocytes.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.
Note: It is recommended to store the product undiluted at 2-8°C and protected from prolonged exposure to light. Do not freeze.