Kinetic Studies of Adenosine Kinase from Ehrlich Ascites Tumor Cells
J. Frank Henderson 1, Aiko Mikoshiba 1, Samuel Y. Chu 1, and Ian C. Caldwell 1
From the
1 From the University of Alberta Cancer Research Unit (McEachern Laboratory) and Department of Biochemistry, Edmonton, Alberta, Canada
Adenosine kinase (ATP: adenosine 5'-phosphotransferase, EC 2.7.1.20) was partially purified from Ehrlich ascities tumor cells. Initial velocity and product inhibition studies indicated that it catalyzes an ordered Bi Bi reaction, with ATP the first substrate to bind, and ADP the first product to dissociate from, the enzyme.
Submitted on September 1, 1971