Human ULBP-4, hFc Tag captured on CM5 Chip via Protein A can bind Human NKG2D, His Tag with an affinity constant of 0.17 μM as determined in SPR assay (Biacore T200).

The expressions of both RAET1E2 transcripts and protein can be found in different tumor cells and tissues. ULBP-4 Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 49.12 kDa and the accession number is Q8TD07-1.

Human

HEK293 Cells

ULBP4,RL-4,retinoic acid early transcript 1E,RAET1E2,NKG2DL4,N2DL-4,LETAL,bA350J20.7

His31-Asp225

> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC

Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.

It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

UL16-binding proteins (ULBPs) are markers of cellular stress which are upregulated on the surface of virus-infected and tumor cells. ULBPs are expressed by a variety of leukemias, carcinomas, melanomas, and tumor cell lines.ULBP4 is associated with higher levels of CD8+/NKG2D+ lymphocytes infiltrating the carcinoma and is a prognosticator of improved survival.