similarly , the quantitation of the major cytoskeletal polypeptides present in the hybrids , such as alpha-and beta-tubulin , vimentin , total actin and 3 polypeptides ( ief 12 , 24 and 31 ) present in intermediate filament enriched cytoskeletons , indicate that changes in the relative proportion of any of these proteins is not sufficient to account for the morphology , actin microfilament pattern or tumorigenicity of the hybrids .
C0001271
actin
C0025979
actin microfilament