Name :
Recombinant Human Claudin18 Protein (CLDN18.1), VLP

Biological Activity :

Background :
Claudins family member Claudin18 (CLDN18) is a four-pass transmembrane protein with two extracellular loops and cytoplasmic N- and C-tails found in tight junctions. CLDN18 modulates paracellular permeability, polarity, and signaling. CLDN18 deficiency has been associated with atrophic gastritis, spasmolytic polypeptide-expressing metaplasia (SPEM), and asthma. Lung-specific CLDN18.1 modulates alveolar epithelial type II (AT2) cell proliferation and organ size. Restoration of CLDN18.1 expression in human lung cancer cells has been shown to suppress proliferation, inhibiting the IGF-1R/AKT axes. Not expressed in other healthy tissues, gastric mucosa-specific isoform CLDN18.2 expression manifests in primary gastric cancers. CLDN18.2 at the surface of epithelial tumor cells is a target in antibody and CAR-therapies currently in development.

Biological Activity :
Immobilized Human Claudin18.1-VLP (Full Length) Protein (Cat: 20047-HNAH) at 5 μg/mL (100 μL/well) can bind Anti-Human claudin18.1 Antibody, Rabbit IgG1, the EC50 is 0.8 ng/mL (QC tested).

Expression Host :
Human

Source :
HEK293 Cells

Tag :

Protein Accession No. :
P56856-1

NCBI Gene ID :

Synonyms :

Synonyms :
claudin 18

Amino Acid Sequence :

Molecular Weight :
The recombinant Human CLDN18 consists of 261 amino acids and predicts a molecular mass of 27.86 kDa.

Purity :

State of Matter :

Product Concentration :

Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -70℃. Store it under sterile conditions at -70℃ or lower. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Endotoxin Level :
< 1.0 EU per μg protein as determined by the LAL method.

Protein Construction :
A DNA sequence encoding the human CLDN18 (P56856-1) (Met1-Val261) was expressed.

Buffer Solution :
Supplied as sterile 50mM Hepes, 150mM NaCl 10% Trehalose, pH 7.2.Please contact us for any concerns or special requirements.Please refer to the specific buffer information in the hardcopy of datasheet.

Shipping :
It is supplied and shipped as liquid with dry ice.

Redissolution :

Synonyms :
SFTA5 Protein, Human; SFTPJ Protein, Human Claudin18 背景信息 Claudins family member Claudin18 (CLDN18) is a four-pass transmembrane protein with two extracellular loops and cytoplasmic N- and C-tails found in tight junctions. CLDN18 modulates paracellular permeability, polarity, and signaling. CLDN18 deficiency has been associated with atrophic gastritis, spasmolytic polypeptide-expressing metaplasia (SPEM), and asthma. Lung-specific CLDN18.1 modulates alveolar epithelial type II (AT2) cell proliferation and organ size. Restoration of CLDN18.1 expression in human lung cancer cells has been shown to suppress proliferation, inhibiting the IGF-1R/AKT axes. Not expressed in other healthy tissues, gastric mucosa-specific isoform CLDN18.2 expression manifests in primary gastric cancers. CLDN18.2 at the surface of epithelial tumor cells is a target in antibody and CAR-therapies currently in development.

References & Citations :

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
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