A. Lavie et al., STRUCTURE OF THYMIDYLATE KINASE REVEALS THE CAUSE BEHIND THE LIMITINGSTEP IN AZT ACTIVATION, Nature structural biology, 4(8), 1997, pp. 601-604
Structural comparison of thymidylate kinase complexed with either dTMP
or with AZTMP suggests that the low phosphorylation rate of AZTMP is
due to an induced P-loop movement.