Keratin Products


Intermediate-sized filaments are abundant cytoplasmic structural proteins in most vertebrate cells. Cytokeratins, a group comprising at least 29 different proteins, are characteristic of epithelial and trichocytic cells. Cytokeratins 1, 4, 5, 6, and 8 are members of the type II neutral-to-basic subfamily.Monoclonal anti-cytokeratins are specific markers of epithelial cell differentiation and have been widely used as tools in tumor identification and classification. Monoclonal Anti-Pan Cytokeratin (mixture) is a broadly reactive reagent, which recognizes epitopes present in most human epithelial tissues. It facilitates typing of normal, metaplastic and neoplastic cells. Synergy between the various components results in staining amplification. This enables identification of cells, which would otherwise be stained only marginally. The mixture may aid in the discrimination of carcinomas and nonepithelial tumors such as sarcomas, lymphomas and neural tumors. It is also useful in detecting micrometastases in lymph nodes, bone marrow and other tissues and for determining the origin of poorly differentiated tumors.


Entrez Human
Alternate Names
  • EPPK
  • Keratin-1
  • EHK
  • KRTA
  • K1
  • Cytokeratin-1
  • CK-1
  • keratin, type II cytoskeletal 1
  • cytokeratin-1,67 kDa cytokeratin
  • Type-II keratin Kb1
  • cytokeratin 1
  • Hair alpha protein
  • EHK1
  • epidermolytic hyperkeratosis 1
  • CK1
  • KRT1A
  • keratin 1

Research Areas for Keratin

Find related products by research area and learn more about each of the different research areas below.

Cytoskeleton Markers
Stem Cell Markers