TABLE 4.

Effects of catechins on T. cruzi AK activity

CatechinSp act (U/mg of protein)a
None8.4 ± 1.1
C7.8 ± 0.1
EC6.9 ± 1.3
Cg4.4 ± 0.6b
GC6.1 ± 0.8
EGC5.4 ± 0.7
GCg4.5 ± 0.3b
EGCg7.6 ± 0.2
  • a One unit of AK activity was defined as the amount of enzyme that produced 1 μmol of phosphoarginine per minute of incubation. The concentration of catechins in the incubation medium was 1 nM.

  • b P < 0.05.