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Anti-Cytokeratin 19 [EP1580Y] Alexa Fluor® 488 conjugated antibody (ab192643) rabbit monoclonal antibody that is used to detect Cytokeratin 19 in Flow Cytometry (Intra), Flow Cytometry, ICC/IF. Suitable for Human samples.



- Specificity confirmed with Cytokeratin 19 knockout cell line validation


Images

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (AB192643), expandable thumbnail
  • Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (AB192643), expandable thumbnail
  • Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (AB192643), expandable thumbnail

Publications

Key facts

Isotype
IgG
Host species
Rabbit
Conjugation
Alexa Fluor® 488
Excitation/Emission
Ex: 495nm, Em: 519nm
Storage buffer

pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: PBS, 30% Glycerol (glycerin, glycerine), 1% 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
ICC/IFFlow Cyt (Intra)
Human
Tested
Tested
Mouse
Predicted
Predicted

Tested
Tested

Species
Human
Dilution info
1/100
Notes

Signal can be observed in cells fixed with either methanol or paraformaldehyde.

Predicted
Predicted

Species
Mouse
Dilution info
-
Notes

-

Tested
Tested

Species
Human
Dilution info
1/500
Notes

-

Predicted
Predicted

Species
Mouse
Dilution info
-
Notes

-

Associated Products

Select an associated product type

15 products for Alternative Product

8 products for Alternative Version

Target data

Function

Involved in the organization of myofibers. Together with KRT8, helps to link the contractile apparatus to dystrophin at the costameres of striated muscle.

Alternative names

Recommended products

Anti-Cytokeratin 19 [EP1580Y] Alexa Fluor® 488 conjugated antibody (ab192643) rabbit monoclonal antibody that is used to detect Cytokeratin 19 in Flow Cytometry (Intra), Flow Cytometry, ICC/IF. Suitable for Human samples.



- Specificity confirmed with Cytokeratin 19 knockout cell line validation

Key facts

Isotype
IgG
Conjugation
Alexa Fluor® 488
Excitation/Emission
Ex: 495nm, Em: 519nm
Form
Liquid
Clonality
Monoclonal
Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Clone number
EP1580Y
Purification technique
Affinity purification Protein A
Dissociation constant
3.7 x 10-10 M
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
Avoid freeze / thaw cycle, Stable for 12 months at -20°C, Store in the dark

Notes

What is this antibody validated in?


Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643) is a rabbit recombinant monoclonal antibody and is validated for use in Flow Cytometry (Intra), Flow Cytometry (Flow Cyt), Immunocytochemistry/immunofluorescence (ICC/IF), in Human samples.

Recommended positive controls


ICC/IF: HeLa.ICC/IF KO: MCF7 cells (MCF7-KRT19 KO used as a negative cell line).Flow Cyt (intra): HeLa cells.

Related products


Antibody clone EP1580Y is also available pre-conjugated to a variety of labels for your convenience – Anti-Cytokeratin 19 Alexa Fluor® 488 [EP1580Y] (ab192643).

Specificity confirmed


The specificity of Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643) has been confirmed by Immunocytochemistry testing in Cytokeratin 19 Knockout MCF7 cells.



Other related products


We have a range of other formats of antibody clone [EP1580Y] also available for your convenience:
Anti-Cytokeratin 19 antibody [EP1580Y] - Cytoskeleton Marker ab52625, Alexa Fluor® 488 - ab192643, Alexa Fluor® 647 - Alexa Fluor® 647 Anti-Cytokeratin 19 antibody [EP1580Y] ab192980, HRP - HRP Anti-Cytokeratin 19 antibody [EP1580Y] ab193600, Carrier free - Anti-Cytokeratin 19 antibody [EP1580Y] - BSA and Azide free ab195872, Alexa Fluor® 594 - Alexa Fluor® 594 Anti-Cytokeratin 19 antibody [EP1580Y] ab203443, Alexa Fluor® 555 - Alexa Fluor® 555 Anti-Cytokeratin 19 antibody [EP1580Y] ab203444, Alexa Fluor® 568 - Alexa Fluor® 568 Anti-Cytokeratin 19 antibody [EP1580Y] ab203445, APC - APC Anti-Cytokeratin 19 antibody [EP1580Y] ab224980, PE - PE Anti-Cytokeratin 19 antibody [EP1580Y] ab224981, Carrier free - ab302465, Anti-Cytokeratin 19 antibody [EP1580Y] - Rat IgG2a (Chimeric) ab323561, Anti-Cytokeratin 19 antibody [EP1580Y] - Mouse IgG2a (Chimeric) ab323562



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

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

Supplementary info

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

Cytokeratin 19 (CK19) also known as cytokera­tine 19 keratin 19 (KRT19) or CK19 is a type of intermediate filament found in epithelial cells. It serves as an essential component of the cytoskeleton. CK19 weighs approximately 40 kDa and is broadly expressed in simple epithelial tissues including liver intestine and various glandular epithelial cells. As a cytokeratin marker it often appears in combination with others like cytokeratin 17 in certain tissue types helping to maintain the structural integrity of cells.

Biological function summary

CK19 plays a role in maintaining the cytoskeletal framework that provides mechanical support and helps control cell size and shape. It is not part of a large protein complex but works closely with other cytokeratins to ensure the stability and resilience of epithelial tissues. The A53-B/A22.26 positive staining is often used to confirm its presence in clinical histopathology.

Pathways

CK19 connects to cellular processes especially involving the keratinization and epithelial cell differentiation pathways. It interacts with other cytokeratins including BA16 and KR17 to facilitate these processes. This interaction aids in modulating the dynamics of cytoskeletal rearrangement during cell movement division and differentiation.

Associated diseases and disorders

CK19 overexpression is linked with certain cancers notably hepatocellular carcinoma and breast cancer. It can serve as a prognostic marker in these diseases often in conjunction with other markers like CK17. The involvement of CK19 in the epithelial-mesenchymal transition (EMT) process connects it to the progression and aggressiveness of tumors facilitated by interactions with proteins involved in EMT pathways.

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.

3 product images

  • Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643)

    Immunofluorescence staining of Cytokeratin 19 in wild-type MCF7 cells (top panel) and KRT19 knockout MCF7 cells (bottom panel) using ab192643. The cells were fixed with 100% methanol (5 min), permeabilized with 0.1% Triton X-100 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 with ab192643 at 1/500 dilution (shown in green) and Alexa Fluor® 647 Anti-Tubulin antibody [YOL1/34] - Microtubule Marker ab195884 (Rat monoclonal to Tubulin - Alexa Fluor® 647) at 1/100 dilution (shown in red) overnight at +4°C. Nuclear DNA was labelled in blue with DAPI.
    Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

  • Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643), expandable thumbnail

    Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643)

    Flow Cytometry analysis of Cytokeratin-19 in HeLa (Human epithelial cell line from cervix adenocarcinoma) cells stained with ab192643 (red line).

    The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab192643, 1/500 dilution) for 30 min at 22°C.

    Isotype control antibody (black line) was rabbit monoclonal IgG [EPR25A] Alexa Fluor® 488 (Alexa Fluor® 488 Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab199091) used at the same concentration and conditions as the primary antibody. Unlabeled sample (blue line) was also used as a control.

    Acquisition of >5,000 events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter.

  • Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Cytokeratin 19 antibody [EP1580Y] (ab192643)

    Immunofluorescence staining of Cytokeratin 19 in HeLa (Human epithelial cell line from cervix adenocarcinoma) cells using ab192643. The cells were fixed with 4% formaldehyde (10 min) and then blocked in 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Triton X-100 for 1hr. The cells were then incubated with ab192643 at a working dilution of 1 in 100 (shown in green) and Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291 (Mouse monoclonal [DM1A] to alpha Tubulin) at 1 μg/ml overnight at +4°C, followed by a further incubation at room temperature for 1hr with an AlexaFluor® 594 Goat anti-mouse IgG (H&L - preadsorbed) secondary (Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed ab150120) at 2 μg/ml (shown in pseudo-color red).

    Nuclear DNA was labeled in blue with DAPI.

    This product gave a positive signal in 100% methanol (5 min) fixed HeLa cells under the same testing conditions.

    Image was taken with a Confocal microscope (Leica-microsystems, TCS SP8)

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Product protocols

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

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

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