production of labeled inosine and hypoxanthine from adenosine was considerably lower in adenosine deaminase ( ada ) -deficient cells than in normal cells and virtually eliminated in normal cells by the presence of 1 microm deoxycoformycin ( a potent ada inhibitor ) , suggesting that labeled inosine and hypoxanthine production requires ada activity .
C0001457
adenosine deaminase
C0030896
deoxycoformycin