Synthetic peptide derived from an internal region of the human Claudin-18 protein, which differs from mouse by one conservative amino acid replacement.
Conjugate
Unconjugated
Form
Liquid
Concentration
0.25 mg/ml
Purification
Antigen affinity chromatography
Storage buffer
PBS, pH 7.4
Preservative
0.1% sodium azide
Storage Conditions
-20°C
Tested Applications
Dilution *
Immunofluorescence (IF)
Assay Dependent
Immunohistochemistry (Frozen) (IHC (F))
Assay Dependent
Immunohistochemistry (Paraffin) (IHC (P))
1:20-1:200
Western Blot (WB)
Assay Dependent
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
Background/Target Information
Claudin-18 is a tight junction protein expressed as lung-and stomach-specific isoforms which are generated by alternative splicing of the claudin-18 gene. The lung-specific form is a downstream target gene regulated by the T/EBP/NKX2.1 transcription factor. A splice variant lacking the C-terminal cytoplasmic domain also exists in mouse, but has not been confirmed in human. Human claudin-18 demonstrates 88% amino acid sequence identity to the mouse protein. Immunohistochemical studies have demonstrated complete membrane localization of claudin-18 in lung and stomach epithelial cells, while electron microscopy has shown that it is concentrated in the cell-cell borders of these cells. These features suggest a potentially important role for claudin-18 in the structure and function of tight junctions in the lung and stomach. Claudin-18 expression has also been reported in the inner ear. Because of its highly restricted expression pattern in normal tissues and frequent activation in numerous human cancers, claudin-18 may represent an important target for antibody therapy.
原厂资料：
注意事项：
For Research Use Only. Not for use in diagnostic procedures.
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