untransformed cells ( mouse 3t3 and chick fibroblasts ) , cells transformed by simian virus 40 ( sv 3t3 ) , and chick fibroblasts infected with schmidt-ruppin strain of rous sarcoma virus ( sr-rsv-a-infected cells ) were first compared for differences in microfilament and microtubule patterns after treatment with fluorescein-labeled antibodies to actin and tubulin .
C0007634
cells
C0026046
microtubule