PROVETOP

Biotinylated Human Claudin 18.2 VLP

Catalog No: CLDN182-HB003

Species
Human
Expression System
HEK293
Tag
Biotin, His
Activity
Activity verified

Product overview

Recombinant Biotinylated Full length Human Claudin 18.2 VLP is expressed in HEK293 cells. It contains amino acid residues Met1-Val261 (It may have cross reaction with anti-His antibody) (UniProt accession: P56856-2).

Product Details

Molecular Aliases
CLDN18; CLDN18.2; Claudin-18.2; Claudin18.2; Claudin-18; DKFZp564B2062; SFTA5; SFTPJ
Protein Length
Met1-Val261
Expression System
HEK293
Theoretical Molecular Weight
The target protein has a predicted MW of 29 kDa.
Purity
> 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Supplied as 0.22μm filtered solution in PBS, 300mM L-arginine (pH 7.4).
State
Liquid
Storage Conditions
Valid for 12 months from date of receipt when stored at -80°C. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Data Display

SEC-HPLC
CLDN182-HB003 SEC-HPLC result

The purity of Biotinylated Human Claudin 18.2 VLP is greater than 95% as determined by SEC-HPLC.

ELISA
CLDN182-HB003 ELISA result

Immobilized Biotinylated Human Claudin18.2 VLP at 5μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Anti-Claudin18.2 Antibody, hFc Tag with the EC50 of 16.1ng/ml determined by ELISA (QC Test).

SPR
CLDN182-HB003 SPR result

Biotinylated Human Claudin18.2 VLP captured on CM5 Chip via Streptavidin can bind Anti-Claudin18.2 Antibody with an affinity constant of 1.28 nM as determined in SPR assay (Biacore T200).

Background

Claudin18(CLDN18) belongs to the large claudin family of proteins, which form tight junction strands in epithelial cells. CLDN18 is specifically expressed in the stomach and lung. CLDN18 has two alternatively spliced variants,CLDN18.1 and CLDN18.2. Isoform 2 (Claudin 18.2) is abundant in gastric tumors.

References

  1. Singh P, Toom S, Huang Y. Anti-claudin 18.2 antibody as new targeted therapy for advanced gastric cancer[J]. Journal of Hematology & Oncology, 2017, 10(1):105.

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