Anti-Cytokeratin 19/KRT19 Antibody Picoband®
Primary Antibody supplied by Boster Bio Read more ›

Product Description
Keratin, type I cytoskeletal 19 is a protein that in humans is encoded by the KRT19 gene. The protein encoded by this gene is a member of the keratin family. It is specifically expressed in the periderm, the transiently superficial layer that envelops the developing epidermis. The type I cytokeratins are clustered in a region of chromosome 17q12-q21. Due to its high sensitivity, KRT19 is the most used marker for the RT-PCR-mediated detection of tumor cells disseminated in lymph nodes, peripheral blood, and bone marrow of breast cancer patients. Keratin 19 is often used together with keratin 8 and keratin 18 to differentiate cells of epithelial origin from hematopoietic cells in tests that enumerate circulating tumor cells in blood.
Product information
| Supplier | Boster Bio |
|---|---|
| ABMIUM evidence status | ABMIUM Verified™ collaborator-tested data |
| Catalogue reference | PB9715 |
| Product category | Primary Antibodies |
| Reactive species | Human, Mouse, Rat |
| Tested applications | ELISA, Flow Cytometry, IF/ICC, IHC, IHC-P, WB |
| Available conjugations | Unconjugated, Biotin, Cy3, Fluoro488, Fluoro550, Fluoro594, FITC, HRP, APC, PE, Fluoro647 |
| Gene name | KRT19 |
| Protein name | Keratin, type I cytoskeletal 19 |
| Specificity | No cross reactivity with other proteins. |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human Cytokeratin 19, different from the related mouse and rat sequences by nine amino acids. |
| Host | Rabbit |
| Clonality | Polyclonal |
| Isotype | Rabbit IgG |
| Purification | Immunogen affinity purified. |
| Storage | Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles. |
| UniProt | P08727 |
| NCBI Gene ID | 3880 |
Available variants
| Conjugation | Size |
|---|---|
| Unconjugated | 100 μg/vial |
| Biotin | 100 μg/vial |
| Cy3 | 100 μg/vial |
| Fluoro488 | 100 μg/vial |
| Fluoro550 | 100 μg/vial |
| Fluoro594 | 100 μg/vial |
| FITC | 100 μg/vial |
| HRP | 100 μg/vial |
| APC | 100 μg/vial |
| PE | 100 μg/vial |
| Fluoro647 | 100 μg/vial |
Key Facts
| Target | Keratin, type I cytoskeletal 19 |
| Also known as | Cell and organelle markers; CK 19; CK19; Cytokeratin 19; Cytoskeleton Marker; K19; K1CS; keratin 19; KRT19 |
| Concentration | Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml. |
| Species reactivity | Human,Mouse,Rat |
| Observed band | 44 kDa |
| Purity | No cross reactivity with other proteins. |
| Form / buffer | Lyophilized |
| Shelf life | Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles. |
| Host species | Rabbit |
| Clonality | Polyclonal |
| Isotype | Rabbit IgG |
| Conjugation | Unconjugated|Biotin|Cy3|Fluoro488|Fluoro550|Fluoro594|FITC|HRP|APC|PE|Fluoro647 |
| Non-cross-reactive with | No cross-reactivity with other proteins |
| Tested applications |
ELISAFlow CytometryIF/ICCIHCIHC-PWB |
| Dilution range | Western blot, 0.1-0.5μg/ml, Human, Mouse, Rat Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human, Mouse, Rat Immunocytochemistry/Immunofluorescence, 2μg/ml, Human Immunofluorescence, 5μg/ml, Human Flow Cytometry (Fixed), 1-3μg/1x106 cells, Human |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human Cytokeratin 19, different from the related mouse and rat sequences by nine amino acids. |
| Purification | Immunogen affinity purified. |
Reactivity & Application Validation
3 speciess| Species | WB | IHC | IHC-P | IHC-F | IF/ICC | FLOW CYTOMETRY | ELISA | IP |
|---|---|---|---|---|---|---|---|---|
| Human | ||||||||
| Mouse | ||||||||
| Rat |
Specifications
Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human, Mouse, Rat
Immunocytochemistry/Immunofluorescence, 2μg/ml, Human
Immunofluorescence, 5μg/ml, Human
Flow Cytometry (Fixed), 1-3μg/1x106 cells, Human
Storage & Stability
*This antibody is supplied in a stabilized formulation.
Compatibility with conjugation reactions depends on the chemistry of the conjugation method used.
For conjugation methods that are not compatible with the stabilizing components present in this formulation, a carrier-free antibody format is required.
Compliance & Certifications
Not intended for diagnostic or therapeutic use.