KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | Michaelis-Menten kinetics | Actinoplanes missouriensis | |
0.54 | - |
ATP | pH 8.5, 22°C | Actinoplanes missouriensis | |
2.6 | - |
maltose | pH 8.5, 22°C | Actinoplanes missouriensis |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Actinoplanes missouriensis |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
57000 | - |
1 * 57000, SDS-PAGE | Actinoplanes missouriensis |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Actinoplanes missouriensis | - |
- |
- |
Purification (Comment) | Organism |
---|---|
native enzyme by heat treatment at 50°C for 30 min, anion exchange chromatography, ammonium sulfate fractionation, hydrophobic interaction chromatography, ultra- and gel filtration, and another step of anion exchange chromatography | Actinoplanes missouriensis |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + maltose | - |
Actinoplanes missouriensis | ADP + maltose 1-phosphate | - |
? |
Subunits | Comment | Organism |
---|---|---|
monomer | 1 * 57000, SDS-PAGE | Actinoplanes missouriensis |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | - |
- |
Actinoplanes missouriensis |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
additional information | - |
the activity of maltokinase increases 2.5fold with a maximum at 55°C, but decreases rapidly at temperatures above 60°C | Actinoplanes missouriensis |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.75 | - |
in Tris/HCl buffer | Actinoplanes missouriensis |
8.5 | - |
in TEA/HCl buffer | Actinoplanes missouriensis |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
ATP | dependent on, ATP is not replaceable as phosphoryl-group donor | Actinoplanes missouriensis | |
additional information | CTP and TTP show no activity, while GTP with 2.1% activity compared to ATP and UTP with 2.7% show only poor activity as phosphoryl-group donors | Actinoplanes missouriensis |
Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|
Actinoplanes missouriensis | isoelectric focusing | - |
4.3 |