Term Name:	keratin filament
Synonyms:	acidic keratin, basic/neutral keratin
Definition:	A filament composed of acidic and basic keratins (types I and II), typically expressed in epithelial cells. The keratins are the most diverse classes of IF proteins, with a large number of keratin isoforms being expressed. Each type of epithelium always expresses a characteristic combination of type I and type II keratins.
Ontology:	GO: Cellular Component [GO:0045095]    QuickGO    AmiGO