Cytokeratin 18 (KRT18) antibody

Antigen: Cytokeratin 18 (KRT18)

Synonyms: K18, CK18, Krt1-18, CYK18, KRT18, LOC100008885, MGC109143, krt18

Clonality: Monoclonal (DC-10)

Host: Mouse

Reactivity: Human

Application: Enzyme Immunoassay (EIA), Immunofluorescence (IF), Immunoprecipitation (IP), Immunohistochemistry (Paraffin-embedded Sections) (IHC (p)), Western Blotting (WB)

Catalog no.: ABIN118968

Additional Information

Alternative name: Cytokeratin 18

Swiss-Prot: P05783

Immunogen: Human breast carcinoma cell line PMC-42

Isotype: IgG1  (Matching secondary antibodies)

Clone: DC-10

Description: Cytokeratins are a subfamily of intermediate filaments and characterized by remarkable biochemical diversity. Cytokeratins are represented in epithelial tissues by at least 20 different polypeptides, molecular weight between 40 kDa and 68 kDa. The individual cytokeratin polypeptides are designated 1 to 20 and divided into the type I (acidic cytokeratins 9-20) and type II (basic to neutral cytokeratins 1-8) families. Cytokeratin 18 belongs to type I family (acidic cytokeratins).

Specificity: The antibody reacts with Cytokeratin 18 (45 kDa). Cytokeratins are a member of intermediate filaments subfamily represented in epithelial tissues.

Application Details

Application Notes: Immunoprecipitation. Western Blotting (non-reducing conditions): 1-2 mg/ml, overnight in 4 °C. Positive control: HeLa human cervix carcinoma cell line MCF-7 human breast adenocarcinoma cell line. Sample preparation: Resuspend approx. 50 mil. cells in 1 ml cold Lysis buffer (1% laurylmaltoside in 20 mM Tris/Cl, 100 mM NaCl pH 8.2, 50 mM NaF including Protease inhibitor Cocktail). Incubate 60 min on ice. Centrifuge to remove cell debris. Mix lysate with non- reducing SDS-PAGE sample buffer. SDS-PAGE (10% separating gel). Immunohistochemistry (paraffin sections): 10 - 1:100. Positive tissue: epithelial tissue (skin). Immunocytochemistry. Positive control: MCF-7 human breast adenocarcinoma cell line HeLa human cervix carcinoma cell line. ELISA. Positive control: MCF-7 human breast adenocarcinoma cell line. Application note: The antibody DC-10 has been tested as the detection antibody in a sandwich ELISA for analysis of Cytokeratin 18 in combination with the clone C-04. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.

Concentration: 1.0 mg/ml

Buffer: Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4

Storage: Store the antibody at 2 - 8 °C up to one month or (in aliquots) at -20 °C for longer. Avoid repeated freezing and thawing. Shelf Life: one year from despatch.

Research Area: Signaling, Cytoskeleton, Extracellular Matrix

Restrictions: For Research Use only

Publications

Publications: Kovaruik, Rejthar, Lauerovua et al.: "Monoclonal antibodies against individual cytokeratins in the detection of metastatic spread." in: International journal of cancer. Supplement = Journal international du cancer. Supplement, Vol. 3, pp. 50-5, 1989 (PubMed).