The 218 linker is a conserved sequence found in many CAR constructs. By targeting this common element, ACROBiosystems’ antibody eliminates the need to develop custom detection reagents for each new target. Available in multiple fluorescent conjugates, it allows researchers to easily incorporate linker detection into multi color flow cytometry panels for simultaneous screening of different CAR candidates.

Yes. ACROBiosystems offers bulk and custom formulation services. Whether you need a unique fluorescent label not in our standard catalog or large lot reservations for consistent global clinical trials, our team can provide tailored solutions to match your CMC and manufacturing timelines.

Every batch of our anti-linker antibodies undergoes rigorous validation, including SEC-HPLC for purity (typically >95%) and functional testing in flow cytometry using real transfected cell lines (e.g., HEK293T or CHO). This integrated approach ensures that the antibody recognizes the target in the context of a live cell membrane.

Anti linker antibodies are typically supplied as lyophilized powders. For long term storage, keep the lyophilized product at 20°C or lower, protected from light, and avoid repeated freeze thaw cycles. After reconstitution, store at 2 8°C for short term use, or aliquot and freeze at 20°C for long term storage.

If the bispecific CAR incorporates the 218 linker within its scFv components, the antibody will be able to detect its expression. This is particularly useful for verifying the surface density of complex, multi-targeting constructs where individual antigen-binding might be difficult to quantify.

Yes. As researchers move toward CAR-NK and allogeneic iPSC-derived therapies, the 218 linker remains a standard structural component. ACRO’s universal detection tools are fully compatible with these platforms, providing a consistent way to verify engineering success across diverse cell types.

The 218 linker is specifically designed to reduce aggregation. If detection issues persist, it may indicate a deeper structural problem with the scFv folding. Using an anti-linker antibody in Simple Western™ or flow cytometry can help researchers determine if the linker is exposed and accessible, serving as a vital tool for structural troubleshooting.

A major reason for choosing the 218 linker is its ability to enhance the stability of the scFv. Research indicates that scFvs containing this specific linker show reduced aggregation and are more resistant to proteolysis (breakdown by enzymes) in vitro compared to some other synthetic linkers.