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Anti-Claudin 5 antibody [EPR7583] ab131259 is a rabbit monoclonal antibody that is used in Claudin 5 western blotting, IHC and immunofluorescence. Suitable for human samples.

- Recombinant format for unrivaled batch-batch consistency: no need for same-lot requests
- Specificity and sensitivity confirmed in IHC with multi-tissue microarray (TMA) validation
- Antibody clone EPR7583 is cited in over 110 publications


Images

Western blot - Anti-Claudin 5 antibody [EPR7583] (AB131259), expandable thumbnail
  • Western blot - Anti-Claudin 5 antibody [EPR7583] (AB131259), expandable thumbnail
  • Western blot - Anti-Claudin 5 antibody [EPR7583] (AB131259), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (AB131259), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (AB131259), expandable thumbnail

Publications

Key facts

Isotype

IgG

Host species

Rabbit

Storage buffer

pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA

Form

Liquid

Clonality

Monoclonal

Immunogen

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

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
IHC-PWBICC/IFIHC-Fr
Human
Tested
Tested
Tested
Not recommended
Mouse
Not recommended
Not recommended
Not recommended
Not recommended

Tested
Tested

Species

Human

Dilution info

1/100 - 1/1000

Notes

Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

Not recommended
Not recommended

Species

Mouse

Dilution info

-

Notes

-

Tested
Tested

Species

Human

Dilution info

1/1000 - 1/10000

Notes

ab131259 failed to detect target band in mouse brain tissue.

This antibody failed to get signal in cell lines when performing western blot, so we do not recommend to use it when testing cell lines in westen blot.

Not recommended
Not recommended

Species

Mouse

Dilution info

-

Notes

-

Tested
Tested

Species

Human

Dilution info

0.008 µg/mL

Notes

-

Not recommended
Not recommended

Species

Mouse

Dilution info

-

Notes

-

Not recommended
Not recommended

Species

Mouse, Human

Dilution info

-

Notes

-

Associated Products

Select an associated product type

1 product for Alternative Product

Target data

Function

Plays a major role in tight junction-specific obliteration of the intercellular space.

Alternative names

Recommended products

Anti-Claudin 5 antibody [EPR7583] ab131259 is a rabbit monoclonal antibody that is used in Claudin 5 western blotting, IHC and immunofluorescence. Suitable for human samples.

- Recombinant format for unrivaled batch-batch consistency: no need for same-lot requests
- Specificity and sensitivity confirmed in IHC with multi-tissue microarray (TMA) validation
- Antibody clone EPR7583 is cited in over 110 publications

Key facts

Isotype

IgG

Form

Liquid

Clonality

Monoclonal

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

EPR7583

Purification technique

Affinity purification Protein A

Specificity

ab131259 failed to detect target band in mouse brain tissue. This antibody is unsuitable to be used in IHC on mouse tissues.

This antibody failed to get signal in cell lines when performing western blot, so we do not recommend to use it when testing cell lines in westen blot.

Concentration
Loading...

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

Stable for 12 months at -20°C

Notes

Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Rat: We have preliminary internal testing data to indicate this antibody may not react with this species. Please contact us for more information.

Supplementary info

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

Activity summary

Claudin 5 also known as CLDN5 is an integral component of tight junction strands within endothelial and epithelial cells. This protein possesses a molecular weight of approximately 23 kDa. It prominently expresses in the vascular endothelial cells of the blood-brain barrier and other blood-tissue barriers. Claudin 5 plays a mechanical role in forming selectively permeable paracellular barriers that regulate the movement of molecules and ions between cells. This function is essential in preserving the tissue-specific environment.

Biological function summary

Claudin 5 serves as an important element in maintaining the integrity of the blood-brain barrier by creating a selective permeability. It operates as part of a larger tight junction complex interacting mainly with other claudin proteins and proteins such as occludin and ZO-1. These interactions ensure the structural and functional integrity of the cell junctions which helps stabilize the barrier properties against various physiological and pathological insults.

Pathways

Claudin 5 is involved in important biological pathways such as the tight junction pathway and the barrier permeability regulation pathway. Through these pathways it interacts with proteins like occludin and various signaling molecules. This involvement allows tight regulation of barrier permeability ensuring selective transport and preventing the passage of harmful substances into sensitive areas like the central nervous system.

Associated diseases and disorders

Claudin 5 plays a significant role in conditions like cerebral edema and Alzheimer's disease. Altered expression or dysfunction of Claudin 5 disrupts the blood-brain barrier contributing to these disorders. In Alzheimer's disease there is evidence of impaired tight junctions where Claudin 5 interacts with other claudins and related proteins like amyloid-beta affecting barrier integrity. Understanding these connections helps in developing therapeutic strategies targeting tight junction stability.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

11 product images

  • Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    All lanes: Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259) at 1/1000 dilution

    Lane 1: Human fetal brain lysate at 10 µg

    Lane 2: Human lung squamous cell cancer lysate at 10 µg

    Lane 3: Human small cell lung cancer lysate at 10 µg

    Secondary

    All lanes: HRP labelled Goat anti Rabbit IgG at 1/2000 dilution

    Predicted band size: 23 kDa

  • Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Blocking buffer: 5% NFDM/TBST
    Dilution buffer: 5% NFDM/TBST

    All lanes: Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259) at 1/5000 dilution

    All lanes: Human small cell lung cancer at 10 µg

    Secondary

    All lanes: HRP goat anti-rabbit IgG (H+L) at 1/5000 dilution

    Predicted band size: 23 kDa

    Observed band size: 20 kDa

  • Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Blocking buffer: 5% NFDM/TBST
    Dilution buffer: 5% NFDM/TBST

    All lanes: Western blot - Anti-Claudin 5 antibody [EPR7583] (ab131259) at 1/20000 dilution

    All lanes: Human lung squamous cell cancer lysate at 10 µg

    Secondary

    All lanes: HRP goat anti-rabbit IgG (H+L) at 1/5000 dilution

    Predicted band size: 11 kDa, 118 kDa, 13 kDa, 23 kDa, 25 kDa, 27 kDa, 29 kDa, 33 kDa, 34 kDa, 35 kDa, 66 kDa, 69 kDa, 70 kDa

    Observed band size: 11 kDa, 118 kDa, 18 kDa, 20 kDa, 25-32 kDa, 40 kDa, 70 kDa, 74 kDa

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Immunohistochemical staining of paraffin embedded human colon with purified ab131259 at a working dilution of 1/1000. The secondary antibody used is HRP goat anti-rabbit IgG H&L (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/500. The sample is counter-stained with hematoxylin. Antigen retrieval was perfomed using Tris-EDTA buffer, pH 9.0. PBS was used instead of the primary antibody as the negative control, and is shown in the inset.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Immunohistochemical analysis of paraffin embedded Human kidney tissue labelling Claudin 5 with unpurified ab131259 antibody at 1/100 dilution.

    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Immunohistochemical analysis of paraffin embedded Human lung tissue labelling Claudin 5 with unpurified ab131259 antibody at 1/100 dilution.

    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Unpurified ab131259 showing positive staining in Normal tonsil tissue.


    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Unpurified ab131259 showing positive staining in Normal placenta tissue.


    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Unpurified ab131259 showing positive staining in Normal uterus tissue.


    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    Unpurified ab131259 showing positive staining in Normal colon tissue.


    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

  • Immunocytochemistry/ Immunofluorescence - Anti-Claudin 5 antibody [EPR7583] (ab131259), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-Claudin 5 antibody [EPR7583] (ab131259)

    ab131259 staining Claudin 5 in HUV-EC cells. The cells were fixed with 100% methanol (5 min), permeabilized with 0.1% PBS-Tween for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab131259 at 0.008µg/ml and Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291, Mouse monoclonal [DM1A] to alpha Tubulin - Loading Control. Cells were then incubated with Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081, Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (Alexa Fluor® 488), pre-adsorbed at 1/1000 dilution (shown in green) and Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed ab150120, Goat polyclonal Secondary Antibody to Mouse IgG - H&L (Alexa Fluor® 594), pre-adsorbed at 1/1000 dilution (shown in pseudocolour red). Nuclear DNA was labelled with DAPI (shown in blue). Image was acquired with a high-content analyser (Operetta CLS, Perkin Elmer) and a maximum intensity projection of confocal sections is shown.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

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