Recombinant Human CEACAM3 Protein (C-6His)

Name: Recombinant Human CEACAM3 Protein (C-6His)
Brand: Beta LifeScience
SKU: BL-0474NP
Availability: InStock

BL-0474NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Carcinoembryonic Antigen-Related Cell Adhesion Molecule 3 is produced by our Mammalian expression system and the target gene encoding Lys35-Gly155 is expressed with a 6His tag at the C-terminus.
Accession	P40198
Synonym	Carcinoembryonic Antigen-Related Cell Adhesion Molecule 3; Carcinoembryonic Antigen CGM1; CD66d; CEACAM3; CD66D; CGM1
Gene Background	Carcinoembryonic Antigen-Related Cell Adhesion Molecule 3 (CEACAM3) belongs to the immunoglobulin superfamily and CEA family. CEACAM3 was originally described in bile ducts of liver as biliary glycoprotein. Subsequently, it was found to be a cell-cell adhesion molecule detected on leukocytes, epithelia, and endothelia. CEACAM3 mediates cell adhesion via homophilic as well as heterophilic binding to other proteins of the subgroup. In addition, it is associated with the differentiation and arrangement of tissue three-dimensional structure, angiogenesis, apoptosis, tumor suppression, metastasis, and the modulation of innate and adaptive immune responses.
Molecular Mass	14.13 KDa
Apmol Mass	15-22 KDa, reducing conditions
Formulation	Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.2.
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution	Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	Major granulocyte receptor mediating recognition and efficient opsonin-independent phagocytosis of CEACAM-binding microorganisms, including Neissiria, Moxarella and Haemophilus species, thus playing an important role in the clearance of pathogens by the innate immune system. Responsible for RAC1 stimulation in the course of pathogen phagocytosis.
Subcellular Location	Membrane; Single-pass type I membrane protein.
Protein Families	Immunoglobulin superfamily, CEA family
Database References	HGNC: 1815 OMIM: 609142 KEGG: hsa:1084 STRING: 9606.ENSP00000349971 UniGene: PMID: 28886618 CEACAM3 signalling in neutrophils is able to specifically modulate airway inflammation caused by infection with M. catarrhalis. PMID: 27038042 Opacity protein OpaI of Neisseria gonorrhoeae in lipooligosaccharide mutants lost ability to interact with neutrophil-restricted CEACAM3. PMID: 27376801 p-CEA measurement in patients with pleural effusion of uncertain etiology is a safe and cost-effective procedure, everywhere easily available, which may help clinicians in selecting patients for further evaluations PMID: 27521620 Demonstrated the CEACAM3 specificity and a perioperative trend of circulating tumor cells which is coherent with the clinical/pathological considerations in colorectal cancer. PMID: 26556959 COLIV is a promising tumour marker for CLM and can possibly be used to detect postoperative CLM recurrence. The combination of COLIV and CEA is superior to either marker alone in detecting CLM PMID: 26162539 The higher expression of CD44v6, integrin-beta1, CA199, and CEA are closely related to the progression and metastasis of pancreatic cancer.[CA199, CD44v6] PMID: 22382453 A failure of CEACAM3-mediated innate immune detection might be linked to the ability of gonococci to cause disseminated infections. PMID: 23630956 Grb14 is the first negative regulator of CEACAM3-initiated bacterial phagocytosis and might help to focus granulocyte responses to the subcellular sites of pathogen-host cell contact PMID: 22948154 CEACAM3 promotes opsonin-independent phagocytosis of CEACAM-binding bacteria. CEACAM3 is the main driver for this process on human granulocytes. PMID: 22469950 the ability of CEACAM3 to coordinate signaling events that not only mediate bacterial uptake, but also trigger the killing of internalized pathogens. PMID: 21216968 CEACAM6 and a regulatory element near the 3' end of CEACAM3 are associated with cystic fibrosis disease severity and intrapair discordance PMID: 20047061 CA-19.9 serum tumor marker levels retain independent prognostic value for poor survival in patients with advanced pancreatic cancer. PMID: 20071292 CEACAM3 has a role in internalizing bacteria to epithelial cells PMID: 12571236 CEACAM3 controls human-specific pathogens by the innate immune system. PMID: 14707113 Molecular staging of SLN using real-time RT-PCR for early breast cancer could serve as a useful complement to standard clinicopathological risk factors. PMID: 17071045 Increased p53, CEA, and CA 19-9 serum levels are associated with colorectal cancer. PMID: 17211733 Our results suggest that an immunohistochemical panel consisting of TTF-1, CEA, CA-125, and OCT-4 is helpful in distinguishing most pulmonary and ovarian carcinomas with clear cell features. PMID: 17413979 These data reveal CEACAM3 as a specific innate immune receptor that mediates the opsonin-independent clearance of CEACAM-binding bacteria via Syk, a molecular trigger for functional immunoreceptor responses of both the adaptive and innate immune systems. PMID: 17506820 killing of bulk NK cultures was inhibited by CEA-expressing cells, suggesting that this putative receptor is an inhibitory receptor PMID: 17878338 Increased CA 19-9 level is associated with pancreatic adenocarcinoma and cholangiocarcinoma. PMID: 19089662

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.