nuclear extracts from sv40-infected cv-1 monkey kidney cells and from polyoma-infected 3t3 mouse cells contain an endonucleolytic activity which cleaves circular viral dna within the chromatin to full-length linear rods [ waldeck , w. , fohring , b. , chowdhury , k. , gruss , p. , & sauer , g , ( 1978 ) proc . natl . acad . sci . u.s.a. 75 , 5964-5968 ; scott , w. a. , & wigmore , d. j . ( 1978 ) cell ( cambridge , mass . ) 15 , 1511-1518 ] .
C0008546
chromatin
C0007634
cell