Work with LifeSpan to design a custom immunohistochemistry to address your specific biological question. Outsource the entire localization process without having to
worry about finding and characterizing target specific antibodies, sourcing and validating difficult-to-find tissues, and having the ability to interpret the resulting
immunostaining in relation to complex human pathologies.
TCR Screening Services
Test your therapeutic antibodies in immunohistochemistry against a broad panel of normal frozen human tissue types in order to determine potential unintended binding.
Our non-GLP TCR services are designed on the FDA recommendation outlined in their "Points to Consider in the Manufacture and Testing of Monoclonal Antibody Products for Human Use".
23.4 kDa. DTT-reduced protein migrates as 35-45 kDa due to glycosylation
HEK 293 Cells
Greater than 98% by SDS-PAGE
Measured by its binding ability in a functional ELISA. Immobilized recombinant human CD200R1 at 2 µg/ml. The concentration of rhCD200 that produces 50% of the optimal binding response is approximately 0.5-16 ng/ml.
Less than 1.0 EU/µg protein (determined by LAL method).
Lyophilized from PBS, pH 7.4, 5-8% mannitol or trehalose
Centrifuge the vial before opening. Reconstitute in sterile PBS, pH 7.4 to 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, store at -20°C.
CD200, also known as OX-2, is a type I membrane protein belonging to the Ig superfamily. It has a 202 amino acid extracellular domain and a short cytoplasmic domain. CD200 is widely expressed by a variety of cell types. It interacts with CD200R another Ig superfamily inhibitory receptor primarily expresses on leukocytes of the myeloid lineage to inhibit myeloid functions. It has been shown to be up regulated in CLL.