two-dimensional gel electrophoresis ( ief ) analysis of short-term [ 32p ] orthophosphate-labelled intermediate-sized filament proteins ( keratins and vimentin ) from transformed mitotic amnion cells ( ama ) , have shown that these proteins are modified coordinately and that the half life of the phosphate is about 13 min for the keratins and 11 min for vimentin .
C0021769
intermediate
C0042666
vimentin