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Anti-KRT19 / CK19 / Cytokeratin 19 Antibody (aa312-335, clone A53-B/A2.26) IHC-plus™ LS-B2650

Note: This antibody replaces LS-C24989, LS-C87927


Wt. Vol. Conc. Price
- 125 µl 0.2 mg/ml $395
Inquire for larger quantities

LSBio (Direct) LSBio (Direct)

Most Popular KRT19 / CK19 / Cytokeratin 19 Antibodies

Anti-KRT19 / CK19 / Cytokeratin 19 Antibody (aa21-40) IHC-plus™ LS-B108
Rabbit Polyclonal to Mouse KRT19 / CK19 / Cytokeratin 19
Mouse, Human, Monkey
IHC - Paraffin, ELISA
Immunohistochemistry Image
Anti-KRT19 / CK19 / Cytokeratin 19 Antibody (Internal) IHC-plus™ LS-B1925
Rabbit Polyclonal to Human KRT19 / CK19 / Cytokeratin 19
Human, Monkey, Mouse, Dog
IHC - Paraffin, Western blot
Immunohistochemistry Image
Anti-KRT19 / CK19 / Cytokeratin 19 Antibody (aa312-335, clone A53-B/A2.26) IHC-plus™ LS-B2650
Mouse Monoclonal [clone A53-B/A2.26] (IgG2a,l) to Human KRT19 / CK19 / Cytokeratin 19
Human, Mouse, Rat, Guinea pig
IHC - Paraffin, IHC - Frozen, Immunofluorescence, Western blot
Immunohistochemistry Image

100% Guaranteed 100% Guaranteed
Mouse Monoclonal [clone A53-B/A2.26] (IgG2a,l) to Human KRT19 / CK19 / Cytokeratin 19
Human, Mouse, Rat, Guinea pig
IHC - Paraffin, IHC - Frozen, Immunofluorescence, Western blot


Human KRT19 / CK19 / Cytokeratin 19
Human, Mouse, Rat, Guinea pig (tested or 100% immunogen sequence identity)
IgG2a,l Monoclonal [A53-B/A2.26]
Protein G purified


  • IHC - Paraffin (10 µg/ml)
  • IHC - Frozen (1 - 2 µg/ml)
  • Immunofluorescence
  • Western blot (2 - 4 µg/ml)

Specificity and Use

KRT19 / CK19 / Cytokeratin 19 antibody was raised against human breast cancer MCF-7 cells. Epitope: aa312-335 Cellular Localization: Cytoplasmic. MW of antigen: 40kD.
Recognizes the rod domain of keratin 19 (40kD). Reacts with the MCF-7 cells, which are known to contain keratin 19. It shows no reaction with the cells lacking keratin 19 such as A431 and HeLa. Species cross-reactivity: Human. Weak reactivity with rat, mouse and guinea pig.
Immunohistochemistry: LS-B2650 was validated for use in immunohistochemistry on a panel of 21 formalin-fixed, paraffin-embedded (FFPE) human tissues after heat induced antigen retrieval in pH 6.0 citrate buffer. After incubation with the primary antibody, slides were incubated with biotinylated secondary antibody, followed by alkaline phosphatase-streptavidin and chromogen. The stained slides were evaluated by a pathologist to confirm staining specificity. The optimal working concentration for LS-B2650 was determined to be 10 ug/ml. Western Blot: 2-4 ug/ml for 2 hrs at RT. Positive control: LS174T and HT29 cells, skin.


10 mM PBS, pH 7.4, 0.2% BSA, 0.09% sodium azide.
Long term: -20°C; Short term: +4°C. Avoid repeat freeze-thaw cycles.
For research use only.

About KRT19 / CK19 / Cytokeratin 19

P08727 NM_002276 NP_002267.2

KRT19 Antibody, CK19 Antibody, Cytokeratin 19 Antibody, Cytokeratin-19 Antibody, Keratin 19 Antibody, Keratin-19 Antibody, CK-19 Antibody, K19 Antibody, K1CS Antibody, Keratin, type I, 40-kd Antibody

KRT19 / CK19 / Cytokeratin 19 is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Unlike its related family members, this smallest known acidic cytokeratin is not paired with a basic cytokeratin in epithelial cells.


Anti-Cytokeratin 19 antibody IHC of human uterus. Immunohistochemistry of formalin-fixed, paraffin-embedded tissue after heat-induced antigen retrieval. Antibody LS-B2650 concentration 10 ug/ml.

Requested From: United States
Date Requested: 10/25/2016

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