WT
aPeak PAH activity 375372658
Residual peak activity (in %) 5100
bL-phenylalanine
concentration
at peak activity
284431
c[S]0.5 - Ki 67 - 494135 - 747
dBH4 concentration
at peak activity
100130
e[C]0.5 - Ki 57 - 26730 - 294

a Peak PAH enzyme activity is given as [pmol L-tyrosine/min x mg protein].

b L-phenylalanine concentration at peak activity is given as [µM].

c [S]0.5 - Ki indicates the optimal PAH working range (>50 % of the respective residual activity) as to substrate concentrations.

d BH4 concentration at peak activity is given as [µM]

e [C]0.5 - Ki indicates the optimal PAH working range (>50 % of the respective residual activity) as to cofactor concentrations.

n. a., not applicable because no peak area was delimitable.