the proteins are immunoprecipitated by an antiserum directed against trophoblastoma intermediate filament proteins and by a serum directed against a major cytoskeletal protein found in murine extraembryonic endodermal cell lines ( endo-a ) [ oshima r. g. ( 1981 ) j. biol . chem . 256 , 8124-8133 ] .
C0021769
intermediate
C0010853
cytoskeletal