the content of ribonucleoside triphosphates ( rntps ) in acid-soluble extracts in imr 90 cells was significantly reduced by ams treatment , and nuclei or broken cell preparations obtained from ams-treated imr 90 cells incorporated [ 3h ] utp into macromolecules at approximately control rates , when supplemented with rntps .
C0007610
nuclei
C0007634
cells