magnesium ions variably influenced activity of highly purified thymidylate synthetase preparations from different mouse tumors , activating the enzyme from ehrlich ascites carcinoma ( eac ) cells and inhibiting the enzyme from l1210 and l5178y cells and from 5-fluorodeoxyuridine ( fdurd ) -resistant eac cells .
C0007097
carcinoma
C1518174
eac cells