- Description
| Specificity Profile | More Information |
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The specificity of Claudin-19 Monoclonal Antibody (CSB0175) was tested on the Membrane Proteome Array® and shown to be specific for human Claudin-19. The Membrane Proteome Array® contains 6,000 different human membrane proteins, each expressed in unfixed human cells to ensure native conformation and post-translational modifications. The Membrane Proteome Array® represents the industry standard for determining the binding specificity of antibodies and other protein ligands. |
| Application | Conditions | Recommended Concentration |
| Flow Cytometry, Extracellular | Live, Unpermeabilized | 1 µg/ml |
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HEK-293F cells transiently transfected with human Claudin-19 were stained with Claudin-19 Monoclonal Antibody (CSB0175) (green) or isotype control antibody (gray), followed by AlexaFluor 647- conjugated anti-Mouse IgG secondary antibody. HEK-293F cells transiently transfected with an empty control vector were also stained with Claudin-19 Monoclonal Antibody (CSB0175) (blue). | |
| Application | Conditions | Recommended Concentration |
| Immunofluorescence, Extracellular | Fixed 4% paraformaldehyde | 1 µg/ml |
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(Left) JS-1 cells transiently transfected human Claudin-19 were stained with Claudin-19 Monoclonal Antibody (CSB0175) followed by AlexaFluor 647 anti-Mouse IgG secondary antibody (red) and DAPI (blue). (Top right) JS-1 cells transiently transfected with an empty control vector stained with Claudin-19 Monoclonal Antibody. (Bottom right) Isotype control: JS-1 cells transfected with human Claudin-19 and stained with control MAb. | |
| Application | Conditions | Recommended Concentration |
| Immunofluorescence, Intracellular | Fixed 4% paraformaldehyde, Permeabilized 0.1% Triton X-100 | 1 µg/ml |
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(Left) JS-1 cells transiently transfected human Claudin-19 were permeabilized and stained with Claudin-19 Monoclonal Antibody (CSB0175) followed by AlexaFluor 647 anti-Mouse IgG secondary antibody (red) and DAPI (blue). (Top right) JS-1 cells transiently transfected with an empty control vector stained with Claudin-19 Monoclonal Antibody. (Bottom right) Isotype control: JS-1 cells transfected with human Claudin-19 and stained with control MAb. | |
CSB VeRSaMAbs:
We produce and validate all our monoclonal antibodies
in-house so that you can confidently choose the right antibody for your assay. All antibodies are
VALIDATED for common applications, RECOMBINANT for batch-to-batch consistency, and
SPECIFIC in binding to only your target.
| Target | Claudin-19 |
| Target Aliases | CLDN19, Claudin 19 |
| Isotype | Mouse IgG2a |
| Membrane Proteome Specificity | Monospecific for 6,000 membrane proteins tested |
| Species Reactivity | Human (Others untested) |
| Fc Modifications | C-terminal Avitag, disabled Fc-gamma receptor binding |
| Source | Recombinant CHO expression; purified by Protein A chromatography |
| Formulation | Endotoxin Free PBS pH 7.4, sterile-filtered |
| Concentration | 1 mg/ml |
Stable for 12 months from date of receipt when stored at 4°C. Avoid repeated freeze-thaw cycles.
Claudin 19 is a member of the claudin family of tetraspan integral membrane proteins that are core structural components of tight junction strands. The protein contains four transmembrane helices with cytoplasmic N- and C-termini and two extracellular loops that contribute to paracellular barrier properties and ion selectivity. CLDN19 localizes to tight junctions in epithelial cells and is expressed in kidney and ocular tissues. Expression data support enrichment in kidney and eye, consistent with its role in epithelial barrier function. (NCBI Gene: 149461, UniProtKB/Swiss-Prot: Q8N6F1) Other names: CLDN19, Claudin 19
