Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells. When 5 x 104 cells/well are added to human E-Selectin/Fc Chimera coated plates (1 µg/mL with 100 µL/well), approximately 90-100% will adhere after 2 hour incubation at RT.
E-Selectin (Endothelial Leukocyte Adhesion Molecule-1, ELAM-1, CD62E), a member of the Selectin family, is a 107 - 115 kDa cell surface glycoprotein. It is transiently expressed on vascular endothelial cells in response to IL-1 beta and TNF-alpha, and demonstrates peak expression at 4 hours, and decay at 24 hours, in response to activation. E-Selectin ligands, expressed on neutrophils, monocytes, and a subset of memory T cells, are sialylated, fucosylated molecules which bind to the lectin domain of E-Selectin. Immunocytochemical techniques have demonstrated the expression of E-Selectin on healthy and diseased tissue. The human and mouse E-Selectin proteins share 81% amino acid similarity. E-Selectin mediates the attachment of flowing leukocytes to the blood vessel wall during inflammation by binding to E-Selectin ligands on leukocytes. These interactions are labile and permit leukocytes to roll along the vascular endothelium in the direction of blood flow. This initial interaction is followed by a stronger interaction involving ICAM-1 and VCAM-1 that leads eventually to extravasation of the white blood cell through the blood vessel wall into the extracellular matrix tissue. ELISA techniques have shown that detectable levels of soluble E-Selectin are present in the biological fluids of apparently normal individuals. Furthermore, a number of studies have reported that levels of E-Selectin may be elevated in subjects with a variety of pathological conditions.
生物活性
Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells. When 5 x 104 cells/well are added to human E-Selectin/Fc Chimera coated plates (1 µg/mL with 100 µL/well), approximately 90-100% will adhere after 2 hour incubation at RT.
33.0-40.0 kDa, under reducing conditions; 30.5-37.3 & 54.5-63.7 kDa, under non-reducing conditions.
分子类型
蛋白质
产品线
生物产品
储存与运输
物理形态
冻干(Lyophilized)
储存缓冲液
Lyophilized from PBS, pH 7.4
浓度
见COA
复溶
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 1.0 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
-20℃保存 12个月;复溶后建议分装,避免反复冻融。
图片
Recombinant Human E-selectin/CD62E Protein (rp217606) - Bioactivity Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells. When 5 x 104 cells/well are added to human E-Selectin/Fc Chimera coated plates (1 µg/mL with 100 µL/well), approximately 90-100% will adhere after 2 hour incubation at RT.
Recombinant Human E-selectin/CD62E Protein (rp217606) - SDS-PAGE 3 μg/lane of Recombinant Human E-selectin/CD62E Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 33.0-40.0 kDa under reducing conditions and 30.5-37.3 & 54.5-63.7 kDa under non-reducing conditions. Under specific non-physiological conditions, including high concentrations or particular buffer environments, CD62E (E-selectin) may coexist as both monomers and dimers (Uniprot ID: P16581).