• Purity

  >90%, by SDS-PAGE under reducing conditions and visualized by silver stain

• Endotoxin Level

  <1.0 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 VCAM-1 coated plates (10 μg/mL with 100 μL/well), >85% cells will adhere after 1 hour incubation at 37 °C.    
     Optimal dilutions should be determined by each laboratory for each application.  

• Source

  Mouse myeloma cell line, NS0-derived Phe25-Glu698, with a substitution of Arg322Gly and an N-terminal Met

• Accession #

• N-terminal Sequence    
  Analysis

  Met

• Predicted Molecular Mass

  74 kDa

• SDS-PAGE

  90-95 kDa, reducing conditions

Background: VCAM-1/CD106

Human VCAM-1 (CD106), a member of the immunoglobulin superfamily, is a cell surface protein expressed by activated endothelial cells and certain leukocytes (such as macrophages). VCAM-1 expression is induced by IL-1 beta, IL-4, TNF-alpha and IFN? gamma. VCAM-1 binds to leukocyte integrins VLA-4 and alpha ₄ beta ₇.

During the inflammatory adhesion mechanism, activated integrins halt rolling leukocytes and attach them firmly to the vascular endothelium. They do this by binding to their ligands, for example VCAM-1, on endothelium. The VCAM-1: VLA-4/ alpha ₄ beta ₇ interaction is also thought to be involved in the extravasation of white blood cells through the blood vessel wall to sites of inflammation.

ELISA techniques have shown that detectable levels of soluble VCAM-1 are present in the biological fluids of apparently normal individuals. Furthermore, a number of studies have reported that levels of VCAM-1 may be elevated or lowered in subjects with a variety of pathological conditions.

• Long Name:

  Vascular Cell Adhesion Molecule 1

• Entrez Gene IDs:

  7412 (Human); 22329 (Mouse)

• Alternate Names:

  CD106 antigen; CD106; DKFZp779G2333; INCAM-100; L1CAM; MGC99561; vascular cell adhesion molecule 1; vascular cell adhesion protein 1; V-CAM 1; VCAM1; VCAM-1