Recombinant Human CEACAM-5/CD66e (His-Avi Tag), Yisheng (CAT#: STEM-CT-0205-ZJF)

The Recombinant Human CEACAM-5/CD66e (His-Avi Tag) manufactured by Yisheng is suitable for studying CEACAM-5/CD66e-mediated cellular processes.
CEACAM-5, also known as CEA and CD66e, belongs to the large family of CEACAM and pregnancy-specific glycoproteins. CEACAM-5, expressed primarily by epithelial cells, consists of an N-terminal Ig-like V-set domain followed by six Ig-like C2-set domains and a GPI anchor. It functions as a calcium-independent adhesion molecule through homophilic and heterophilic interactions with CEACAM-1. CEACAM-5 is restricted to the apical face of intestinal epithelial cells in adults but is more diffuse during embryonic development and in tumors. Upregulated in a wide variety of human tumors, CEACAM-5 is a commonly used cancer marker. It promotes tumor cell migration, invasion, adhesion, and metastasis and contributes to tumor formation by maintaining cellular proliferation in the presence of differentiation stimuli and blocking apoptosis following loss of ECM anchorage (anoikis).

Synonyms: CEACAM-5; CD66e; CEA; Meconium antigen 100; Carcinoembryonic; CEACD66e; DKFZp781M2392
Uniprot No.: Q8N4D0
Source: Recombinant Human CEACAM-5/CD66e Protein is expressed from HEK293 Cells with His tag and Avi tag at the C-terminal. It contains Lys35-Ala685.
Molecular Weight: The protein has a predicted MW of 74.2 kDa. Due to glycosylation, the protein migrates to 115-150 kDa based on Tris-Bis PAGE result.
Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
Purity: > 95% as determined by SDS-PAGE and HPLC
Activity: 1.ELISA Data: Immobilized Human CEACAM-5 at 0.5μg/ml (100μl/well). Dose response curve for Anti-CEACAM Antibody, hFc Tag with the EC50 of 14.8ng/ml determined by ELISA.
2.SPR Data: Human CEACAM-5, His Tag captured on CM5 Chip via Anti-His Antibody can bind Anti-CEACAM5 Antibody, hFc Tag with an affinity constant of 0.12nM as determined in SPR assay (Biacore T200).
Endotoxin: < 1.0 EU per 1μg of the protein by the LAL method.
Formulation: Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization.
Reconstitution: Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water.

Shipped with ice pack.
Stored at -20℃ to -80℃ for 1 year.
2-7 days, 2 to 8 ℃ under sterile conditions after reconstitution.
3 months, -20 ℃ under sterile conditions after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please avoid freeze-thaw cycles.
For safety and health, please wear lab coats and disposable gloves for operation.

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