CEACAM1 Protein, Mouse (HEK293, His)

The CEACAM1 protein is a cell adhesion molecule that mediates calcium-independent homologous cell adhesion. CEACAM1 negatively regulates neutrophil and platelet function, downregulates the CSF3R-STAT3 pathway, and modulates insulin clearance and lipogenesis. CEACAM1 Protein, Mouse (HEK293, His) is the recombinant mouse-derived CEACAM1 protein, expressed by HEK293 , with C-His labeled tag.

CEACAM1 protein, functioning as a cell adhesion molecule, mediates homophilic cell adhesion in a calcium-independent manner. It plays a multifaceted role as a coinhibitory receptor in immune responses and insulin action, while also serving as an activator during angiogenesis. Through phosphorylation- and PTPN6-dependent mechanisms, CEACAM1 suppresses signal transduction of associated receptors, inhibiting T-cell cytotoxicity, proliferation, and cytokine production. Moreover, it regulates autoimmunity and anti-tumor immunity by interacting with HAVCR2. In NK cells, it inhibits KLRK1-mediated cytolysis and negatively regulates IL1B production in neutrophils. CEACAM1 down-regulates neutrophil production by acting as a coinhibitory receptor for CSF3R, and it also regulates insulin action by promoting INS clearance and controlling lipogenesis in the liver. Furthermore, it functions as an activator in angiogenesis, promoting blood vessel remodeling and arteriogenesis. CEACAM1 regulates vascular permeability, down-regulates cell growth in response to EGF, inhibits platelet aggregation, negatively regulates osteoclastogenesis, and contributes to the regulation of IgA production and secretion associated with microbiota control and resistance to enteropathogens.

Mouse

HEK293

C-His

P31809-1 (E35-G428)

26365  [NCBI]

75-110 kDa

Greater than 95% as determined by Tris-Bis PAGE.

Lyophilized powder

Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.