Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
Recommended positive controls: H1299, HeLa, HepG2, Molt-4, Raji.
Predicted reactivity: Mouse (84%), Rat (85%), Dog (91%), Bovine (88%).
Store product as a concentrated solution. Centrifuge briefly prior to opening the vial.
Cytokeratins are a subfamily of intermediate filament proteins and are characterized by a remarkable biochemical diversity, represented in human epithelial tissues by at least 20 different polypeptides. They range in molecular weight between approximately40 kDa and approximately68 kDa and isoelectric pH between 4. 9-7. 8. The individual human cytokeratins are numbered 1 to 20. The various epithelia in the human body usually express cytokeratins which are not only characteristic of the type of epithelium, but also related to the degree of maturation or differentiation within an epithelium. Cytokeratin subtype expression patterns are used to an increasing extent in the distinction of different types of epithelial malignancies. The cytokeratin antibodies are not only of assistance in the differential diagnosis of tumors using immunohistochemistry on tissue sections, but are also a useful tool in cytopathology and flow cytometric assays.
⚠WARNING: This product can expose you to chemicals including mercury, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CK-4; cytokeratin 4; Cytokeratin-4; K4; keratin 4, type II; Keratin, type II cytoskeletal 4; Keratin-4; Type-II keratin Kb4
Gene Aliases: CK-4; CK4; CYK4; K4; KRT4; WSN1
UniProt ID: (Human) P19013
Entrez Gene ID: (Human) 3851
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
Learn moreGet expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.
Contact tech support