EC Number |
Metals/Ions |
Reference |
---|
2.7.4.33 | Mg2+ |
less effective than Mn2+ |
737499 |
2.7.4.33 | Mg2+ |
required |
645130, 718620, 718728, 718766, 719681, 738411 |
2.7.4.33 | Mg2+ |
required, best at 100 mM for polyphosphate utilization/ADP synthesis and 20 mM for polyphosphate synthesis. The equilibrium ratio for the AMP and ADP formation by PAP is 1:19 in the presence of 100 mM MgCl2 and is changed to 1:9.6, i.e. 9.4% of 5 mM ADP is converted to AMP, in the presence of 20 mM MgCl2 |
722511 |
2.7.4.33 | Mg2+ |
required, most effective metal for activity |
758213 |
2.7.4.33 | Mg2+ |
specifically required, lowers the Km for the nucleotide substrate |
722513 |
2.7.4.33 | Mn2+ |
Meiothermus ruber PPK2 requires Mn2+ rather than Mg2+ for its activity |
737499 |
2.7.4.33 | more |
low activity with Co2+ or Ni2+, no activity in the presence of Mn2+ or Ca2+ |
758213 |
2.7.4.33 | more |
other metal ions such as Mn2+, Fe2+, Ca2+, Cu2+, Zn2+, and Co2+ cannot enhance the activity |
722513 |