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Claudin 18 Antibody (38-8100) in IHC (P)
Immunohistochemistry analysis of Claudin-18 (Mid) showing staining in the membrane and cytoplasm of paraffin-embedded human stomach tissue (right) compared to a negative control without primary antibody (left). To expose target proteins, antigen retrieval was performed using 10mM sodium citrate (pH 6.0), microwaved for 8-15 min. Following antigen retrieval, tissues were blocked in 3% H2O2-methanol for 15 mi... View More
Product Details
38-8100
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human,
Mouse
Published species
Human,
Rat
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
Synthetic peptide derived from an internal region of the human Claudin-18 protein, which differs from mouse by one conservative amino acid replacement.
Conjugate
Form
Liquid
Concentration
0.25 mg/mL
Purification
Antigen affinity chromatography
Storage buffer
PBS, pH 7.4
Contains
0.1% sodium azide
Storage conditions
-20°C
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_2533383
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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Protein Aliases: Claudin-18; surfactant associated 5; surfactant associated protein J; surfactant, pulmonary associated protein J
Gene Aliases: CLDN18; SFTA5; SFTPJ; UNQ778/PRO1572
UniProt ID: (Human) P56856, (Mouse) P56857
Entrez Gene ID: (Human) 51208, (Mouse) 56492
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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