keratin filament
http://purl.obolibrary.org/obo/GO_0045095
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. [ http://openisbn.com/search.php?q=0716731363&isbn=1/ ]
Term info
acidic keratin, basic/neutral keratin
cellular_component
GO:0045095