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human duodenum (courtesy of L. Langbein) Zoom

human duodenum (courtesy of L. Langbein)

anti-Keratin K19 guinea pig polyclonal, serum

Marker for all glandular type epithelia and useful for discriminating glandular epithelial carcinoma from those of different origin. No reaction with hepatocelluar carcinoma.
Cat. No.: GP-CK19
Quantity:  100 µL

Delivery Time: usually 1-7 working days

Excl. 19% Tax, excl. Shipping Cost

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Product description

Host guinea pig
Antibody Type polyclonal
Immunogen human keratin K19, purified from MCF-7 cells
Purification stabilized antiserum
Conjugate unconjugated
Formulation contains 0.09% sodium azide and 0.5% BSA
Storage short term at 2 – 8 °C; long term storage in aliquots at - 20 °C; avoid freeze/ thaw cycles
Note centrifuge prior to opening
Intended use Research use only
Tested species reactivity bovine, human (negative with mouse and rat)
Buffer Compatibility Guinea pig (GP68)


Tested applications Tested dilutions
Immunocytochemistry (ICC)/ Immunofluorescence (IF) 1:100
Immunohistochemistry (IHC) - frozen 1:100
Immunohistochemistry (IHC) - paraffin 1:100 (microwave treatment recommended)
Western Blot (WB) 1:3,000



The antiserum represents an excellent marker for all glandular type epithelia, useful for discrimination of glandular epithelial carcinoma from those of different origin.
No reaction with hepa-tocellular ca.! Polypeptide Reacting: Mr 40 000 polypeptide (keratin K19) of human glandular epithelia.
Reactive polypeptide: acidic human keratin K19 (Mr 40,000; formerly also designated cytokeratin 19)
Tumors detected: all adeno-carcinoma tested


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