CD52, also known as CAMPATH-1 antigen, is a small glycosylphosphatidylinositol (GPI) anchored glycoprotein that is tethered to the cell surface with a GPI linkage. This protein can be targeted to induce immune suppression by complement-meditated cell lysis. CD52 is expressed on lymphocytes, monocytes, monocytes- derived dendritic cells, eosinophils, and neutrophils, but not on the stem cells from which these lymphocytes were derived. Also, it is an important target for therapeutic interventions aimed at leukocyte depletion in hematological malignancies and post-transplant immunosuppression. Recombinant human CD52, fused to hIgG-His-Tag at C-terminal, expressed in insect cell and purified by using conventional chromatography techniques. Source: Recombinant protein corresponding to a1-36 of human CD52, fused to hIgG-His-Tag at C-terminal, expressed in insect cell. Molecular Weight: ~28.2kD (251aa), ~28-40kD (SDS-PAGE under reducing conditions) Endotoxin: <1EU/1ug (determined by LAL method) AA Sequence: GQNDTSQTSS PSLEPKSCDK THTCPPCPAP ELLGGPSVFL FPPKPKDTLM ISRTPEVTCV VVDVSHEDPE VKFNWYVDGV EVHNAKTKPR EEQYNSTYRV VSVLTVLHQD WLNGKEYKCK VSNKALPAPI EKTISKAKGQ PREPQVYTLP PSRDELTKNQ VSLTCLVKGF YPSDIAVEWE SNGQPENNYK TTPPVLDSDG SFFLYSKLTV DKSRWQQGNV FSCSVMHEAL HNHYTQKSLS LSPGKHHHHH H Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
