• Target：
• Claudin 18

• Fields：
• >>Cell adhesion molecules;>>Tight junction;>>Leukocyte transendothelial migration;>>Pathogenic Escherichia coli infection;>>Hepatitis C

• Gene Name：
• CLDN18 UNQ778/PRO1572

• Protein Name：
• Claudin 18

• Human Gene Id：
• 51208

• Human Swiss Prot No：
• P56856

• Immunogen：
• Synthesized peptide derived from human Claudin 18 AA range: 1-100

• Specificity：
• This antibody detects endogenous levels of Claudin 18 at Human

• Formulation：
• Liquid in PBS containing 50% glycerol, and 0.05% proclin 300.

• Source：
• Monoclonal, Mouse IgG1, Lambda

• Dilution：
• IHC 1:200-400, ELISA 1:5000-20000

• Purification：
• Protein G

• Storage Stability：
• -15°C to -25°C/1 year(Do not lower than -25°C)

• Other Name：
• Claudin 18 antibody;Claudin-18 antibody;CLD18_HUMAN antibody;CLDN18 antibody;SFTA5 antibody;SFTPJ antibody;

• Background：
• This gene encodes a member of the claudin family. Claudins are integral membrane proteins and components of tight junction strands. Tight junction strands serve as a physical barrier to prevent solutes and water from passing freely through the paracellular space between epithelial or endothelial cell sheets, and also play critical roles in maintaining cell polarity and signal transductions. This gene is upregulated in patients with ulcerative colitis and highly overexpressed in infiltrating ductal adenocarcinomas. PKC/MAPK/AP-1 (protein kinase C/mitogen-activated protein kinase/activator protein-1) dependent pathway regulates the expression of this gene in gastric cells. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jun 2010]

• Function：
• function:Plays a major role in tight junction-specific obliteration of the intercellular space, through calcium-independent cell-adhesion activity.,similarity:Belongs to the claudin family.,tissue specificity:Concentrated at the cell-cell borders of epithelial cells.,

• Subcellular Location：
• Cell junction, tight junction . Cell membrane ; Multi-pass membrane protein . Localizes to tight junctions in epithelial cells. .

• Expression：
• Isoform A1: Expression is restricted to the lung (PubMed:19047087). Isoform A2: Expression is restricted to the stomach mucosa where it is predominantly observed in the epithelial cells of the pit region and the base of the gastric glands including exocrine and endocrine cells (at protein level) (PubMed:19047087).

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