LAG-3:Fc, Recombinant, Human (Lymphocyte Activation Gene-3, FDC Protein, CD223)

Lymphocyte activation gene 3 (LAG-3) plays an important role in negatively regulating T cell proliferation, function and homeostasis. It is required for maximal natural and induced regulatory T cell (Treg) function. LAG-3 is closely related to the T cell co-receptor CD4 and binds to MHC class II molecules but with a significantly higher affinity than CD4. Sequence: The sequence coding for the 4 extracellular Ig-like domains of human LAG-3 (D1-D4) is fused to the Fc portion of human IgG1. Endotoxin (LAL): <0.1EU/ug, Biological Activity: Inhibits binding of MAb to LAG-3 (human) to LAG-3. Induces maturation of human dendritic cells. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.