CEACAM5 Protein, Human, Recombinant (CHO, hFc) is expressed in CHO Cells 3E7. The accession number is P06731.

Human

CHO Cells 3E7

Meconium antigen 100,CEACAM5,CD66e

Lys35-Ala685

> 95% as determined by SDS-PAGE

Reconstitute the lyophilized protein in sterile deionized 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.

Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.

Carcinoembryonic antigen (CEA) also known as Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5), CD antigen CD66e, Meconium antigen 100, is an oncofetal glycoprotein that is normally expressed by mucosal cells. CEA is a member of the immunoglobulin (Ig) superfamily of proteins. CEA is a glycophosphatidylinositol- (GPI-) linked membrane-anchoring protein that is exposed to the cell surface that faces the extracellular matrix. The membrane-anchoring region of CEA can be cleaved by phospholipase C and phospholipase D. The cleaved products are soluble and circulating through blood vessels. Thus, CEA can be present as secreted and cell surface-anchored forms. CEA is functionally associated with cellular interaction, cell adhesion, immune response, anoikis resistance, and promotion of liver metastasis. CEA overexpression is associated with many types of cancers including gastrointestinal, respiratory, and genitourinary system and breast cancers.