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Recombinant Human CEACAM5 Protein (His Tag)
SKU: PKSH031272-100
Recombinant Human CEACAM5 Protein (His Tag)
| SKU # | PKSH031272 |
| Expression Host | HEK293 Cells |
Description
| Synonyms | CD66e, CEA |
| Species | Human |
| Expression Host | HEK293 Cells |
| Sequence | Met 1-Ala 685 |
| Accession | NP_004354.2 |
| Calculated Molecular Weight | 72.8 kDa |
| Observed Molecular Weight | 100-110 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from sterile PBS, pH 7.4 Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
CEACAM5; also known as CEA or D66e; belongs to the large CEACAM subfamily of immunoglobulin superfamily. CEACAM5 is expressed primarily by epithelial cells; and is synthesized as a glycoprotein with a MW of 180 kDa comprising 60% carbohydrate. CEACAM5 contains one Ig-like V-type domain at the N-terminus; followed by six Ig-like C2-type domain and a GPI anchor; and exists as a homodimer. CEACAM5 and CEACAM6 are overexpressed in many cancers and are associated with adhesion and invasion. CEACAM5 can mediate cell-cell adhesion through homotypic and heterotypic interactions. It functions as a homotypic intercellular adhesion molecule and serves as a widely used tumor marker; since it is expressed at higher levels in tumorous tissues than in corresponding normal tissues. CEACAM5 has also been shown to contribute to tumorigenicity by inhibiting cellular differentiation. In addition; CEACAM5 is identified as the host receptor for the Dr family of adhesins of E.Coli; and the binding of E.coli Dr adhesins leads to dissociation of the CEACAM5 homodimer.