Cytokeratin 8/18 Antibody Cocktail

SKU: orb317514

Description

Cytokeratin 8 (CK8) belongs to the type II (or B or basic) subfamily of high molecular weight cytokeratins and exists in combination with cytokeratin 18 (CK18). This mAb cocktail recognizes all simple epithelia including glandular epithelium, for example thyroid, female breast, gastrointestinal tract, respiratory tract, and urogenital tract including transitional epithelium. All adenocarcinomas and most squamous carcinomas are positive but keratinizing squamous carcinomas are usually negative. This antibody is useful in demonstrating the presence of Paget cells; there is very little keratin 18 in the normal epidermis so only Paget cells are stained. Immunohistochemical staining with this mAb is indistinguishable from that obtained with monoclonal antibody 5D3.

Research Area

Epigenetics, Infectious Diseases

Images & Validation

• Tested Applications: FACS, IF, IHC-P, WB
• Dilution Range: Flow cytometry: 1-2ug/10^6 cells,Immunofluorescence: 1-2ug/ml,Western blot: 1-2ug/ml,Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT (1) (2)
• Reactivity: Human
• Application Notes:
  Optimal dilution of the Cytokeratin 8/18 antibody cocktail should be determined by the researcher.1. Staining of formalin-fixed tissues requires boiling tissue sections in pH 9 10mM Tris with 1mM EDTA for 10-20 min followed by cooling at RT for 20 min.2. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.

Key Properties

• Antibody Type: Primary Antibody
• Host: Mouse
• Clonality: Monoclonal
• Isotype: Mouse IgG1, kappa
• Clone No.: B22.1 + B23.1
• Immunogen: A cytoskeletal preparation from HeLa epitheliod carcinoma cells (B22.1) and PMC-42 breast carcinoma cells of human origin (B23.1) were used as the immunogen for the Cytokeratin 8/18 antibody cocktail.
• Purification: Protein G affinity chromatography
• Conjugation: Unconjugated

Storage & Handling

• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Buffer/Preservatives: 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin and 0.05% sodium azide
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

IHC: Formalin-fixed, paraffin-embedded human lung carcinoma stained with Cytokeratin 8/18 antibody (B22.1 + B23.1).

Quick Database Links

UniProt

P05783, P05787