Mouse anti Human Keratin 18

Antibody detects human keratin 18 by Western blot at 45 kDa. Also detects CK18 by immunohistochemistry on frozen and paraffin-embedded tissues. Optimal concentration should be evaluated by serial dilutions.

Cytokeratins (CK) are intermediate filaments of epithelial cells, both in keratinizing tissue (ie., skin) and non-keratinizing cells (ie., mesothelial cells). Although not a traditional marker for endothelial cells, cytokeratins have also been found in some microvascular endothelial cells. Atleast 20 different cytokeratins (CK) in the molecular range of 40-70 kDa and isoelectric points of 5-8.5 can be identified using two dimensional gel electrophoresis. Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). At least one member of the acidic family and one member of the basic family is expressed in all epithelial cells. Monoclonal antibodies to cytokeratin proteins can be useful markers for tumor identification and classification.CK18 is an acidic keratin which is found primarily in non-squamous epithelia and is present in a majority of adenocarcinomas and ductal carcinomas but not in squamous cell carcinomas. CK18 exists in combination with CK8, a basic keratin. Hepatocellular carcinomas have been reportedly defined by the use of antibodies that recognize only cytokeratins 8 and 18.

This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals.

See vial for concentration

Cellular Structures

Provided as solution in phosphate buffered saline with 0.08% sodium azide

Western Blotting

Hybridoma produced by the fusion of splenocytes from mice immunized with human PMC-42 breat carcinoma cells and mouse myeloma cells.

Unconjugated

Products are stable for one year from purchase when stored properly

Protein A/G Chromatography

P05783