FluoSite™ Anti-CD3 Antibody, PE-Labeled

This anti-CD3 antibody is a purified recombinant antibody, which is labeled with R-Phycoerythrin (PE) . This antibody has been tested by flow cytometry for specific binding to human CD3 on the surface of PBMCs (BPS Bioscience #79059) .FluoSite™is a tag-based method for site-specific conjugation of antibodies with fluorophores, ensuring the labeling site is far from the antigen-binding domain to preserve antibody functionality. This precise, consistent labeling ensures the homogeneity of the labeled antibody preparation, making it ideal for flow cytometry and other high-sensitivity applications.

Product Specifications

Background

CD3 (cluster of differentiation 3) is a complex made of CD3γ chain, a CD3δ chain and two CD3ε chains. CD3 associates with the TCR (T-cell receptor) and a CD3ζ chain to activate cytotoxic T Cells (CD8+) and T helper cells (CD4+) and form the TCR complex. It is found in T cells, during all developmental stages, and it is a typical T cell marker. Its essential role in T cell activation has made CD3 an attractive and useful molecule for the development of anti-cancer drugs. For example, CAR-T cells (chimeric receptor antigen T cells) made use of the CD3ζ domain for intracellular signaling activation.

Cross Reactivity

This antibody recognizes human CD3. It has not been tested on other species.

Label

PE is an oligomeric protein complex (270 kDa) from red algae that exhibits intensely bright red-orange fluorescence with excitation peak at 566 nm and an emission peak at 574 nm. The complex consists of six heterodimers, α subunit (18 kDa) and β-subunit (20 kDa), and an additional γ-subunit (34 kDa) .

Applications

Useful for studying expression of CD3 on the cell surface by flow cytometry.

Purification

Protein A affinity chromatography from HEK293 supernatants.

Purity

≥ 90%

Shipping Conditions

+4°C (Gel Packs)

Storage Conditions

At least 6 months at 4°C. Protect from prolonged exposure to light. DO NOT FREEZE. The antibody solution should be stored undiluted between 2°C and 8°C.