whole chromatin was prepared from purified nuclei isolated from livers of b6c3f1 hybrid mice and incubated with 2.5 , 5.0 and 10.0 mumol [ 14c ] ccl4 in the presence of microsomes isolated from the same tissue , at 4 mg protein , and an nadph-regenerating system at 37 degrees c for varying incubation times .
C0008546
chromatin
C0007610
nuclei