Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein, CF

R&D Systems, part of Bio-Techne | Catalog # AVI4128

Biotinylated
R&D Systems, part of Bio-Techne
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AVI4128-050
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Key Product Details

Learn more about Avi-tag Biotinylated Proteins

Source

CHO

Accession #

NP_004354.3

Structure / Form

Biotinylated via Avi-tag

Conjugate

Biotin

Applications

Bioactivity

View all CEACAM-5/CD66e Proteins and Enzymes »

Product Specifications

Source

Chinese Hamster Ovary cell line, CHO-derived human CEACAM-5/CD66e protein
Human CEACAM-5/CD66e
(Lys35-Ala685)
Accession # NP_004354.3		 HHHHHH  Avi-tag
N-terminus C-terminus

Purity

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Lys35

Predicted Molecular Mass

74 kDa

SDS-PAGE

125-155 kDa, under reducing conditions

Activity

Measured by its binding ability in a functional ELISA.
When Biotinylated Recombinant Human CEACAM-5/CD66e His-tag Avi-tag (Catalog # AVI4128) is immobilized at 1 µg/mL (100 µL/well), Recombinant Human Galectin-4 (Catalog # 1227-GA) binds with an ED50 of 15-120 ng/mL.

Scientific Data Images for Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein, CF

Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein Binding Activity

Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein Binding Activity

When Biotinylated Recombinant Human CEACAM-5/CD66e His-tag Avi-tag (AVI4128) is immobilized at 1 μg/mL (100 μL/well), Recombinant Human Galectin-4 (1227-GA) binds with an ED50 of 15-120 ng/mL.
Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein SDS-PAGE

Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein SDS-PAGE

2 μg/lane of Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein (Catalog # AVI4128) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 125-155 kDa.

Formulation, Preparation and Storage

AVI4128
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution Reconstitute at 500 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CEACAM-5/CD66e

CEACAM-5, also known as CEA, CD66e and Psg30, belongs to the large family of CEACAM and pregnancy specific glycoproteins. CEACAM family members are highly glycosylated with varying arrangements of IgV-like and IgC-like regions in their extracellular domains (ECD) and can be expressed as transmembrane, glycophosphatidyl inositol (GPI) linked or soluble proteins (1-3). CEACAM-5 consists of an N-terminal Ig-like V-set domain followed by six Ig-like C2-set domains and a GPI anchor (2, 4, 5). While the mature ECD of human CEACAM-5 shares 26% amino acid identity with mouse CEACAM-5, it remains unclear if these molecules are direct orthologs (6). CEACAM-5, expressed primarily by epithelial cells, functions as a calcium-independent adhesion molecule through homophilic and heterophilic interactions with CEACAM-1 (1, 7). CEACAM-5 is restricted to the apical face of intestinal epithelial cells in the adult but is more diffuse during embryonic development and in tumors (8). This is consistent with a role in the development and maintenance of epithelial architecture. CEACAM-5 is up-regulated in a wide variety of human tumors, promoting tumor cell migration, invasion, adhesion, and metastasis, and has been used as a cancer marker (8, 9). It also contributes to tumor formation by maintaining cellular proliferation in the presence of differentiation stimuli, and by blocking apoptosis following loss of ECM anchorage (anoikis) (10, 11). The GPI anchoring of CEACAM-5 can be released by GPI-PLD, resulting in a soluble molecule that also promotes tumor metastasis (12). Cell surface expression of CEACAM-5 on tumor cells prevents the adhesion of CEACAM-1 expressing NK cells and provides protection from NK-mediated lysis (8). CEACAM-5 also binds a subset of Neisseria opacity proteins (Opa) and E. coli adhesion proteins (13, 14). These interactions trigger clustering of the lipid raft-localized CEACAM-5 to sites of pathogen contact (14, 15). Our Avi-tag Biotinylated Recombinant Human CEACAM-5 features biotinylation at a single site contained within the Avi-tag, a unique 15 amino acid peptide. Protein orientation will be uniform when bound to streptavidin-coated surface due to the precise control of biotinylation and the rest of the protein is unchanged so there is no interference in the protein's bioactivity.

References

  1. Zebhauser, R. et al. (2005) Genomics 86:566.
  2. Hammarstrom, S. (1999) Semin. Cancer Biol. 9:67.
  3. Chan, et al. (2007) Curr Oncol. 14:70.
  4. Schrewe H. et al. (1990) Mol. Cell. Biol. 10:2738.
  5. Hefta, S.A. et al. (1988) Proc. Natl. Acad. Sci. 85:4648.
  6. Hance KW et al. Mutat Res. (2005) 576:132.
  7. Stern, N. et al. (2005) J. Immunol. 174:6692.
  8. Beauchemin N. et al. (2013) Cancer Metastasis Rev. 32:3.
  9. Blumenthal, R.D. et al. (2005) Cancer Res. 65:8809.
  10. Screaton, R.A. et al. (1997) J. Cell Biol. 137:939.
  11. Ordonez, C. et al. (2000) Cancer Res. 60:3419.
  12. Yamamoto, Y. et al. (2005) Biochem. Biophys. Res. Commun. 333:223.
  13. Martin, JN. et al. (2016) Biochemistry. 55:4286
  14. Berger, C.N. et al. (2004) Mol. Microbiol. 52:963.
  15. Tchoupa, A.K. et al. (2014) Cell Commun Signal. 12:27.

Long Name

Carcinoembryonic Antigen-related Cell Adhesion Molecule 5

Alternate Names

CD66e, CEA, CEACAM5

Entrez Gene IDs

1048 (Human); 73250 (Mouse); 102128791 (Cynomolgus Monkey)

Gene Symbol

CEACAM5

UniProt

NP_004354.3

Additional CEACAM-5/CD66e Products

Product Documents for Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein, CF

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Product Specific Notices for Recombinant Human CEACAM-5/CD66e His-tag Avi-tag Protein, CF

For research use only

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