EC Number   |
Metals/Ions  |
Reference |
|---|
    5.1.3.37 | Ca2+ |
absolutely required, optimum concentration 1 mM |
733609 |
| 5.1.3.37 | Ca2+ |
required for activity, all the mannuronan C5-epimerases of Azotobacter vinelandii show differences in concentration of calcium ions needed for full activity, overview |
747457 |
| 5.1.3.37 | Ca2+ |
required, enhances gelation by 1.7fold following rSjC5-VI activity |
746698 |
| 5.1.3.37 | Ca2+ |
required, optimum concentration 0.8 mM. The Ca2+ requirement of domain AlgE1-1 is much higher (optimum around 3 mM) than that of whole AlgE1, while domain AlgE1-2 needs slightly more Ca2+ than AlgE1 for optimal activity |
734128 |
| 5.1.3.37 | Ca2+ |
required, optimum concentration 1-3 mM |
734129 |
| 5.1.3.37 | Ca2+ |
the epimerization reaction is Ca2+ dependent, and both the A and R modules bind this cation. The R modules appear to reduce the Ca2+ concentration needed for full activity and also stimulate the reaction rate when positioned both N- and C-terminally |
734060 |
| 5.1.3.37 | Mg2+ |
at Ca2+ concentrations lower than optimum, the addition of Sr2+ or Mg2+ has a stimulatory effect, but Mg2+ is not able to substitute for Ca2+ when no calcium is added |
734128 |
| 5.1.3.37 | more |
no Ca2+ ions required for activity, and the Ca2+-alginate complex is not a substrate for the enzyme |
733323 |
| 5.1.3.37 | more |
no effect by 1 mM of Mg2+, Sr2+, Li+, and Ba2+ |
746698 |
| 5.1.3.37 | NaCl |
activates best at 300 mM |
746698 |
