three distinct proteins , actin ( 42,000 daltons ) , the principal form of fibroblast 10 nm filament protein ( 55,000 daltons ) , and a protein with a molecular weight of 52,000 and a pi of 5.8 were detected in nonionic detergent-insoluble cytoskeletal and 10 nm filament preparations of control bhk21/c13 and line 9 hamster fibroblasts .
C0010853
cytoskeletal
C0010851
filament