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Rabbit Polyclonal Claudin 1 antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Human samples. Cited in 231 publications.


Images

Western blot - Anti-Claudin 1 antibody (AB15098), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 1 antibody (AB15098), expandable thumbnail
  • Immunocytochemistry/ Immunofluorescence - Anti-Claudin 1 antibody (AB15098), expandable thumbnail

Publications

Key facts

Isotype

IgG

Host species

Rabbit

Storage buffer

pH: 7.6
Preservative: 0.1% Sodium azide
Constituents: PBS, 1% BSA

Form

Liquid

Clonality

Polyclonal

Immunogen

  • The exact immunogen used to generate this antibody is proprietary information.

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Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
WBIHC-PICC/IF
Human
Expected
Expected
Expected
Mouse
Predicted
Predicted
Predicted
Rat
Predicted
Predicted
Predicted
Dog
Predicted
Predicted
Predicted
Monkey
Predicted
Predicted
Predicted

Expected
Expected

Species

Human

Dilution info

Use at an assay dependent concentration.

Notes

-

Predicted
Predicted

Species

Mouse, Rat, Dog, Monkey

Dilution info

-

Notes

-

Expected
Expected

Species

Human

Dilution info

Use at an assay dependent concentration.

Notes

-

Predicted
Predicted

Species

Mouse, Rat, Dog, Monkey

Dilution info

-

Notes

-

Expected
Expected

Species

Human

Dilution info

5 µg/mL

Notes

-

Predicted
Predicted

Species

Mouse, Rat, Dog, Monkey

Dilution info

-

Notes

-

Associated Products

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Target data

Function

Claudins function as major constituents of the tight junction complexes that regulate the permeability of epithelia. While some claudin family members play essential roles in the formation of impermeable barriers, others mediate the permeability to ions and small molecules. Often, several claudin family members are coexpressed and interact with each other, and this determines the overall permeability. CLDN1 is required to prevent the paracellular diffusion of small molecules through tight junctions in the epidermis and is required for the normal barrier function of the skin. Required for normal water homeostasis and to prevent excessive water loss through the skin, probably via an indirect effect on the expression levels of other proteins, since CLDN1 itself seems to be dispensable for water barrier formation in keratinocyte tight junctions (PubMed:23407391).(Microbial infection) Acts as a co-receptor for hepatitis C virus (HCV) in hepatocytes (PubMed:17325668, PubMed:20375010, PubMed:24038151). Associates with CD81 and the CLDN1-CD81 receptor complex is essential for HCV entry into host cell (PubMed:20375010). Acts as a receptor for dengue virus (PubMed:24074594).

Alternative names

Recommended products

Rabbit Polyclonal Claudin 1 antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Human samples. Cited in 231 publications.

Key facts

Isotype

IgG

Form

Liquid

Clonality

Polyclonal

Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Purification technique

Affinity purification Immunogen

Concentration
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Storage

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

Notes

Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.

If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.

Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.

This product is FOR RESEARCH USE ONLY. For commercial use, please contact partnerships@abcam.com.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

Claudin 1 also known as CLDN1 is a protein that plays a fundamental role in the formation of tight junctions in the epithelial cells. This claudin protein has a molecular weight of approximately 22 kDa. You can find it expressed in various tissues including the skin liver kidney and lungs. Claudin 1 belongs to the claudin family which consists of transmembrane proteins involved in sealing the space between adjacent cells therefore ensuring tissue integrity.

Biological function summary

This claudin protein contributes to establishing and maintaining the barrier function that controls paracellular transport which is the movement of substances between cells. Claudin 1 participates as a critical component of the tight junction complex and it interacts with other proteins such as occludin and zonula occludens. These interactions contribute to the regulation and maintenance of cell polarity and signaling.

Pathways

Claudin 1 is involved in the epithelial cell signaling pathways that influence cellular proliferation and differentiation. One significant pathway is the Wnt signaling pathway where claudin 1 cooperates with other claudins and proteins like β-catenin to regulate gene transcription. Additionally it is implicated in the MAPK pathway which involves signaling cascades that affect cell growth division and response to external stress.

Associated diseases and disorders

Claudin 1 shows a strong association with cancers particularly hepatocellular carcinoma and melanoma. In these conditions changes in claudin 1 expression levels can affect tumor progression and metastasis. It also associates with other proteins like E-cadherin impacting cell adhesion and epithelial-mesenchymal transition in cancerous cells. Moreover abnormalities in claudin 1 expression relate to skin disorders such as ichthyosis which is marked by a dysfunction in the skin barrier.

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3 product images

  • Western blot - Anti-Claudin 1 antibody (ab15098), expandable thumbnail

    Western blot - Anti-Claudin 1 antibody (ab15098)

    All lanes: Western blot - Anti-Claudin 1 antibody (ab15098) at 1/25 dilution

    All lanes: HeLa cell lysate

    Predicted band size: 22 kDa

    Observed band size: 19 kDa

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 1 antibody (ab15098), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 1 antibody (ab15098)

    ab15098 (1µg/ml) staining Claudin 1 in human skin using an automated system (DAKO Autostainer Plus). Using this protocol there is strong staining of the cell membrane.
    Sections were rehydrated and antigen retrieved with the Dako 3 in 1 AR buffer EDTA pH 9.0 in a DAKO PT link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 mins. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 min and detected with Dako envision flex amplification kit for 30 minutes. Colorimetric detection was completed with Diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that, for manual staining, optimization of primary antibody concentration and incubation time is recommended. Signal amplification may be required.

  • Immunocytochemistry/ Immunofluorescence - Anti-Claudin 1 antibody (ab15098), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-Claudin 1 antibody (ab15098)

    ICC/IF image of ab15098 stained Hek293 cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab15098, 5µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

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Product protocols

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Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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