| Host | Rabbit |
| Antigen | Keratin 20 |
| Synonyms | CK-20, KRT20 |
| Immunogen | Synthetic Peptide |
| Location | Membrane |
| Accession | P35900 |
| Clone Number | SDT-013-18 |
| Antibody Type | Rabbit mAb |
| Application | WB, IHC-P, ICC |
| Reactivity | Hu |
| Predicted Reactivity | Cz |
| Purification | Protein A |
| Concentration | 0.5 mg/ml |
| Physical Appearance | Liquid |
| Storage Buffer | PBS, 40% Glycerol, 0.05%BSA, 0.03% Proclin 300 |
| Stability & Storage | 12 months from date of receipt / reconstitution, -20 °C as supplied |
| application | dilution | species |
| IHC-P | 1:500-1:1000 | |
| WB | 1:1000 | |
| ICC | 1:500 |
Keratin 20, often abbreviated CK20, is a protein that in humans is encoded by the KRT20 gene. Keratin 20 is a type I cytokeratin. It is a major cellular protein of mature enterocytes and goblet cells and is specifically found in the gastric and intestinal mucosa. In immunohistochemistry, antibodies to CK20 can be used to identify a range of adenocarcinoma arising from epithelia that normally contain the CK20 protein. For example, the protein is commonly found in colorectal cancer, transitional cell carcinomas and in Merkel cell carcinoma, but is absent in lung cancer, prostate cancer, and non-mucinous ovarian cancer. It is often used in combination with antibodies to CK7 to distinguish different types of glandular tumour.
WB result of Keratin 20 Rabbit mAb
Primary antibody: Keratin 20 Rabbit mAb at 1/1000 dilution
Lane 1: MCF7 whole cell lysate 20 µg
Lane 2: HT-29 whole cell lysate 20 µg
Negative control: MCF7 whole cell lysate
Secondary antibody: Goat Anti-Rabbit IgG, (H+L), HRP conjugated at 1/10000 dilution
Predicted MW: 48 kDa
Observed MW: 48 kDa
Exposure time: 180s
IHC shows positive staining in paraffin-embedded human colon.
Anti-Keratin20 antibody was used at 1/1000 dilution, followed by a Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Counterstained with hematoxylin.
Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human colon cancer.
Anti-Keratin20 antibody was used at 1/1000 dilution, followed by a Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Counterstained with hematoxylin.
Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol
IHC shows positive staining in paraffin-embedded human colon cancer.
Anti-Keratin20 antibody was used at 1/1000 dilution, followed by a Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Counterstained with hematoxylin.
Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Negative control: IHC shows negative staining in paraffin-embedded human kidney.
Anti-Keratin20 antibody was used at 1/1000 dilution, followed by a Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Counterstained with hematoxylin.
Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Negative control: IHC shows negative staining in paraffin-embedded human liver cancer.
Anti-Keratin20 antibody was used at 1/1000 dilution, followed by a Goat Anti-Rabbit IgG H&L (HRP) ready to use.
Counterstained with hematoxylin.
Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
ICC shows positive staining in HT-29 cells (top panel) and negative staining in HepG2 cells (below panel). Anti-Keratin 20 antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Rabbit IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 4% PFA and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue). Counterstain with tubulin (Red).
