the intermediate-sized filaments present in epidermal keratinocytes derived from mouse skin and in an established cell line ( hel ) derived from spontaneous transformation of murine keratinocytes grown in vitro , have been examined by immunofluorescence microscopy , using antibodies directed against subunit proteins of different classes of intermediate-sized filaments , as well as by electron microscopy and gel electrophoresis of cytoskeletal preparations highly enriched in intermediate-sized filaments .
C0021769
proteins
C0021770
intermediate