if the substrate affinity ( km adenosine 5'-triphosphate ) of the tumor enzyme is comparable to that of liver , these findings suggest that the reduced basal cyclic adenosine 3':5'-monophosphate levels found to occur in hepatoma 5123tc ( h ) probably are not due to a decreased basal rate of formation of this cyclic nucleotide .
C0001480
adenosine 5
C0001443
adenosine