Claudin-18.2 Protein, Human, Recombinant (Twin strep & Flag)

Catalog No. TMPJ-01028

Claudin-18 (CLDN18) is a protein that in humans is encoded by the CLDN18 gene. It belongs to the group of claudins. CLDN18 belongs to the large claudin family of proteins, which form tight junction strands in epithelial cells. CLDN18 plays a major role in tight junction-specific obliteration of the intercellular space, through calcium-independent cell-adhesion activity. CLDN18 has two isoform A1 and isoform A2. Human CLDN18.2 is highly expressed in a signifcant proportion of gastric and pancreatic adenocarcinomas，while normal tissue expression is limited to the epithelium of the stomach. The restricted expression makes it a potential drug target for the treatment of gastric and pancreatic adenocarcinoma, as evidenced by eforts to target CLDN18.2 via naked antibody and CAR-T modalities. IMAB362 (Claudiximab) is a monoclonal antibody against isoform 2 of Claudin-18. It is under investigation for the treatment of gastrointestinal adenocarcinomas and pancreatic tumors. IMAB362 was developed by Ganymed Pharmaceuticals AG.

Claudin-18.2 Protein, Human, Recombinant (Twin strep & Flag)

Catalog No. TMPJ-01028

Pack Size	Price	Availability
10 μg	$465	7-10 days
50 μg	$1,400	7-10 days
500 μg	$7,400	7-10 days
1 mg	$11,090	7-10 days

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Product Information

Biological Activity	1. Loaded Anti-Human Claudin 18.2 mAb-Fc on AHC Biosensor, can bind Human Claudin-18.2-Flag with an affinity constant of 6.76 nM as determined in BLI assay. (Regularly tested) 2. Immobilized Recombinant Human Claudin-18.2-Flag at 5μg/ml (100 μl/well) can bind Anti-Human Claudin 18.2 mAb-Fc. The ED50 of Anti-Human Claudin 18.2 mAb-Fc is 1.54 ng/ml. (Regularly tested)
Description	Claudin-18 (CLDN18) is a protein that in humans is encoded by the CLDN18 gene. It belongs to the group of claudins. CLDN18 belongs to the large claudin family of proteins, which form tight junction strands in epithelial cells. CLDN18 plays a major role in tight junction-specific obliteration of the intercellular space, through calcium-independent cell-adhesion activity. CLDN18 has two isoform A1 and isoform A2. Human CLDN18.2 is highly expressed in a signifcant proportion of gastric and pancreatic adenocarcinomas，while normal tissue expression is limited to the epithelium of the stomach. The restricted expression makes it a potential drug target for the treatment of gastric and pancreatic adenocarcinoma, as evidenced by eforts to target CLDN18.2 via naked antibody and CAR-T modalities. IMAB362 (Claudiximab) is a monoclonal antibody against isoform 2 of Claudin-18. It is under investigation for the treatment of gastrointestinal adenocarcinomas and pancreatic tumors. IMAB362 was developed by Ganymed Pharmaceuticals AG.
Species	Human
Expression System	HEK293 Cells
Tag	N-Twin strep-Flag
Accession Number	P56856-2
Synonyms	CLDN18.2,CLDN18,Claudin-18.2,Claudin-18,Claudin 18.2
Amino Acid	Met1-Ala200
Construction	Met1-Ala200
Protein Purity	Greater than 70% as determined by reducing SDS-PAGE. Greater than 70% as determined by SEC-HPLC.
Molecular Weight	18-22 kDa (reducing condition)
Endotoxin	< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Formulation	Supplied as a 0.2 μm filtered solution of 50 mM HEPES, 150 mM NaCl, 0.06% DDM, 0.012% CHS, 10% Glycerol, pH 7.5.
Stability & Storage	Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	Shipping with blue ice.
Research Background	Claudin-18 (CLDN18) is a protein that in humans is encoded by the CLDN18 gene. It belongs to the group of claudins. CLDN18 belongs to the large claudin family of proteins, which form tight junction strands in epithelial cells. CLDN18 plays a major role in tight junction-specific obliteration of the intercellular space, through calcium-independent cell-adhesion activity. CLDN18 has two isoform A1 and isoform A2. Human CLDN18.2 is highly expressed in a signifcant proportion of gastric and pancreatic adenocarcinomas，while normal tissue expression is limited to the epithelium of the stomach. The restricted expression makes it a potential drug target for the treatment of gastric and pancreatic adenocarcinoma, as evidenced by eforts to target CLDN18.2 via naked antibody and CAR-T modalities. IMAB362 (Claudiximab) is a monoclonal antibody against isoform 2 of Claudin-18. It is under investigation for the treatment of gastrointestinal adenocarcinomas and pancreatic tumors. IMAB362 was developed by Ganymed Pharmaceuticals AG.