Enzyme activity, mU/mg protein

Yeast strain

ΔPPN1

PPN1-overexpressing strain

Polyphosphatase

88 ± 9.0

3640 ± 10

Polyphosphatase, 10 mg/l heparin

88 ± 7.0

420 ± 30

dATP phosphohydrolase

30 ± 2.8

370 ± 62

dATP phosphohydrolase, 10 mg/l heparin

26 ± 1.0

55 ± 4.0