on the basis of this definition and studies with gpt in nonfocused cytosol preparations , we conclude that fdurd is cleaved to 5-fluorouracil by uridine-deoxyuridine phosphorylase activity in ehrlich ascites cells and in novikoff hepatoma cells , and by dthd phosphorylases in mouse liver , in normal human leukocytes , and in hela ( s3 ) cells .
C1383501
cytosol
C0007634
cells