Claudin-19 in Human Kidney Cancer Tissue. Claudin-19 was detected in immersion fixed paraffin-embedded sections of human kidney cancer tissuer using Mouse Anti-Human Claudin-19 Monoclonal Antibody (Catalog # MAB6970) at 8 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to the cytoplasm and plasma membranes of epithelial cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Sterile PBS to a final concentration of 0.5 mg/mL.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Claudin-19 is a 23 kDa multipass membrane protein in the Claudin family of epithelial tight junction proteins. Claudin-19 is expressed by renal tubular epithelial cells, retinal pigment epithelial cells, and Schwann cells. It interacts with Claudin-16 to form cation-selective paracellular channels in the thick ascending loop of the kidney. Mutations of Claudin-19 are associated with renal disorders of magnesium and calcium reabsorption. Human Claudin-19 shares 95% aa sequence identity with mouse and rat Claudin-19. An alternate splice form of human Claudin-19 has a deletion within the C-terminal cytoplasmic region.
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