EC Number   |
Metals/Ions |
Reference |
|---|
    2.7.1.82 | Ca2+ |
can substitute for Mg2+ |
641348 |
| 2.7.1.82 | Ca2+ |
neither Ca2+ nor Mn2+ can substitute for Mg2+ |
642036 |
| 2.7.1.82 | Mg2+ |
- |
662250 |
| 2.7.1.82 | Mg2+ |
1.25-2.5 mM ATP: reaction requires free Mg2+ rather than an ATP-Mg2+ complex for maximal velocity |
641345 |
| 2.7.1.82 | Mg2+ |
1.5 mM, in 1.5-fold higher concentration of Mg2+ than ATP |
641345 |
| 2.7.1.82 | Mg2+ |
absolute requirement for Mg2+ and Mn2+, Mg2+ is the most active divalent cation at concentrations above 5 mM, optimum: 18 mM, Mn2+ has a greater stimulatory effect on the enzyme than Mg2+ at levels less than 5 mM, presence of Mn2+ at lower concentrations of Mg2+ has an additive effect, at higher concentrations of Mg2+, Mn2+ inhibits |
641350 |
| 2.7.1.82 | Mg2+ |
ATP concentration exceeding that of Mg2+: strong inhibition |
641345 |
| 2.7.1.82 | Mg2+ |
ethanolamine kinase I: uses MgATP2- as substrate but also has an additional requirement for Mg2+ |
641348 |
| 2.7.1.82 | Mg2+ |
ethanolamine kinase II: requires MgATP2- as substrate, maximal activation with 10 mM of Mg2+ and ATP |
641348 |
| 2.7.1.82 | Mg2+ |
free Mg2+ essential for maximal velocity |
642041 |
