Date published: 2025-11-21

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Cytokeratin 19 Antibody (A53-B/A2): sc-6278

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Datasheets
  • Cytokeratin 19 Antibody (A53-B/A2) is a mouse monoclonal IgG2a κ, cited in 97 publications, provided at 200 µg/ml
  • raised against breast carcinoma cell line MCF7 of human origin
  • Cytokeratin 19 Antibody (A53-B/A2) is recommended for detection of amino acids 312-335 of Cytokeratin 19 of human origin by WB, IP, IF and IHC(P)
  • Anti-Cytokeratin 19 Antibody (A53-B/A2) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP and m-IgG2a BP-HRP are the preferred secondary detection reagents for Cytokeratin 19 Antibody (A53-B/A2) for WB and IHC(P) applications. These reagents are now offered in bundles with Cytokeratin 19 Antibody (A53-B/A2) (see ordering information below).

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Cytokeratin 19 Antibody (A53-B/A2) is a mouse monoclonal IgG2a kappa light chain antibody that detects Cytokeratin 19 of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and immunohistochemistry with paraffin-embedded sections (IHCP). Anti-Cytokeratin 19 antibody (A53-B/A2) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. Cytokeratin 19, a member of the cytokeratin family, is primarily located in the suprabasal layers of squamous epithelium, where Cytokeratin 19 plays a vital role in maintaining structural integrity and mechanical resilience of epithelial cells. This localization allows Cytokeratin 19 to function effectively in providing support during cellular stress and injury, contributing to overall epithelial tissue health. Expression of Cytokeratin 19 is often upregulated in various malignancies, making Cytokeratin 19 a valuable biomarker for diagnosing conditions such as hepatoma and lung cancer. Elevated levels of Cytokeratin 19 fragments in serum have been associated with tumor presence, highlighting significance in clinical diagnostics. Cytokeratin 19′s ability to serve as a marker for dysplasia and carcinoma in situ further underscores importance in cancer research and pathology, providing insights into tumor differentiation and progression.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Cytokeratin 19 Antibody (A53-B/A2)

sc-6278
200 µg/ml
$316.00

Cytokeratin 19 Antibody (A53-B/A2): m-IgG Fc BP-HRP Bundle

sc-525430
200 µg Ab; 10 µg BP
$354.00

Cytokeratin 19 Antibody (A53-B/A2): m-IgG2a BP-HRP Bundle

sc-546252
200 µg Ab; 10 µg BP
$354.00

Cytokeratin 19 Antibody (A53-B/A2) AC

sc-6278 AC
500 µg/ml, 25% agarose
$416.00

Cytokeratin 19 Antibody (A53-B/A2) HRP

sc-6278 HRP
200 µg/ml
$316.00

Cytokeratin 19 Antibody (A53-B/A2) FITC

sc-6278 FITC
200 µg/ml
$330.00

Cytokeratin 19 Antibody (A53-B/A2) PE

sc-6278 PE
200 µg/ml
$343.00

Cytokeratin 19 Antibody (A53-B/A2) Alexa Fluor® 488

sc-6278 AF488
200 µg/ml
$357.00

Cytokeratin 19 Antibody (A53-B/A2) Alexa Fluor® 546

sc-6278 AF546
200 µg/ml
$357.00

Cytokeratin 19 Antibody (A53-B/A2) Alexa Fluor® 594

sc-6278 AF594
200 µg/ml
$357.00

Cytokeratin 19 Antibody (A53-B/A2) Alexa Fluor® 647

sc-6278 AF647
200 µg/ml
$357.00

Cytokeratin 19 Antibody (A53-B/A2) Alexa Fluor® 680

sc-6278 AF680
200 µg/ml
$357.00

Cytokeratin 19 Antibody (A53-B/A2) Alexa Fluor® 790

sc-6278 AF790
200 µg/ml
$357.00

Which antigen retrieval technique is needed for IHC-P ? thanks

Asked by: SophiePaquet
Thank you for your question. We recommend using sodium citrate buffer (pH 6.0) with heat treatment for antigen retrieval.
Answered by: Technical Support
Date published: 2019-06-16

What is the recommended secondary reagent to use with this mouse monoclonal primary antibody?

Asked by: AbPolly
Thank you for your inquiry. We recommend using one our exclusive Mouse IgG Binding Proteins as a secondary detection reagent. A complete list of available binding proteins is available on our website here: https://www.scbt.com/scbt/browse/support-products-mouse-igg-binding-proteins/_/N-ecrety
Answered by: Technical Support 5
Date published: 2017-01-11

Can this antibody be used for detection of Cytokeratin 19 of mouse origin?

Asked by: AbPolly
Thank you for your question. This antibody has not been validated for use to detect Cytokeratin 19 of mouse origin. For further details and sequence analysis, please contact our Technical Service Department.
Answered by: Technical Support 5
Date published: 2017-01-11
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Rated 5 out of 5 by from 美しいバンドが検出されます。WBで使用しました。シャープなバンドが検出されました。非特異的なバンドは一切ありません。バンドの大きさもデータシートと同じ位置です。
Date published: 2020-12-01
Rated 5 out of 5 by from Works wellUsed the antibody for IP and WB and worked well in both cases
Date published: 2020-03-09
Rated 5 out of 5 by from Good on FFPEI used this antibody on formalin-fixed paraffin-embedded human carcinomas. The staining was quite decent. The antibody was used at a 1:30 dilution and incubated for 15 minutes. Staining was clear. I also used CK19 (A-3) antibody on a serial section simultaneously and although both antibodies were quite good, the staining from CK19 (A-3) was more vibrant.
Date published: 2017-08-10
Rated 5 out of 5 by from Just a great productStrong western blot data; also a superb product for western applications
Date published: 2017-01-29
Rated 5 out of 5 by from Good antibodyThe Cytokeratin 19 Antibody (A53-B/A2): sc-6278 works very well for IHC with formalin fixed, paraffin-embedded tissue sections showing localized staining to the cytoplasm and membrane. This antibody has also been cited over 40 times for further verification.
Date published: 2017-01-16
Rated 5 out of 5 by from IHC publication with human breast cancerIHC publication with human breast cancer. -SCBT Publication Review
Date published: 2015-02-23
Rated 5 out of 5 by from Beautiful IHC data in paraffinBeautiful IHC data in paraffin-embedded human breast and pancreas tissue. -SCBT QC
Date published: 2015-02-17
Rated 5 out of 5 by from Immunofluorescence publication with human liverImmunofluorescence publication with human liver. -SCBT Publication Review
Date published: 2015-02-10
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Cytokeratin 19 Antibody (A53-B/A2) is rated 5.0 out of 5 by 10.
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