• Purity

  >95%, by SDS-PAGE under reducing conditions and visualized by silver stain

• Endotoxin Level

  <0.1 EU per 1 μg of the protein by the LAL method.  

• Activity

  Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells. When 5 x 10    ⁴ cells/well are added to human E-Selectin/Fc Chimera coated plates (2 µg/mL with 100 µL/well), approximately 90-100% will adhere after 1 hour incubation at RT.    
     Optimal dilutions should be determined by each laboratory for each application.  

• Source

  Mouse myeloma cell line, NS0-derived

  Human E-Selectin (Trp22 - Pro556) Accession # P16581	IEGRMD	Human IgG1 (Pro100 - Lys330)	6-His tag
  N-terminus			C-terminus

• Accession #

• N-terminal Sequence    
  Analysis

  Trp22

• Structure / Form

  Disulfide-linked homodimer

• Predicted Molecular Mass

  86 kDa (monomer)

• SDS-PAGE

  150 kDa, reducing conditions

Background: E-Selectin/CD62E

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.

• Entrez Gene IDs:

  6401 (Human); 20339 (Mouse); 25544 (Rat)

• Alternate Names:

  CD62 antigen-like family member E; CD62E antigen; CD62E; ELAM; ELAM1; ELAM-1; ELAM1E-selectin; endothelial adhesion molecule 1; Endothelial leukocyte adhesion molecule 1; ESEL; E-Selectin; LECAM2; leukocyte endothelial cell adhesion molecule 2; Leukocyte-endothelial cell adhesion molecule 2; SELE; selectin E