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Literature summary extracted from
- Studies on the biosynthesis of cyclitols, XXXVI. Purification of myo-inositol-1-phosphate synthase of duckweed, Lemna gibba to homogeneity by affinity chromatography on NAD-Sepharose. Molecular and catalytic properties of the enzyme (1978), Hoppe-Seyler's Z. Physiol. Chem., 359, 613-616.
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 5.5.1.4 | EDTA | reactivation by Mn2+ | Lemna gibba |  |
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 5.5.1.4 | 0.035 | - |
glucose 6-phosphate | - |
Lemna gibba | |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 5.5.1.4 | 45000 | - |
3 * 45000, SDS-PAGE in presence of 2-mercaptoethanol | Lemna gibba |
| 5.5.1.4 | 135000 | - |
gel filtration | Lemna gibba |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 5.5.1.4 | D-Glucose 6-phosphate | Lemna gibba | the key enzyme in the biosynthesis of myo-inositol, and the derivatives of myo-inositol like phytic acid and the inositol phosphatides | ? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 5.5.1.4 | Lemna gibba | - |
- |
- |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 5.5.1.4 | - |
Lemna gibba |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 5.5.1.4 | D-Glucose 6-phosphate | - |
Lemna gibba | L-myo-Inositol 1-phosphate | - |
? | |
| 5.5.1.4 | D-Glucose 6-phosphate | the key enzyme in the biosynthesis of myo-inositol, and the derivatives of myo-inositol like phytic acid and the inositol phosphatides | Lemna gibba | ? | - |
? | |
Subunits
| EC Number | Subunits | Comment | Organism |
|---|---|---|---|
| 5.5.1.4 | trimer | 3 * 45000, SDS-PAGE in presence of 2-mercaptoethanol | Lemna gibba |
Cofactor
| EC Number | Cofactor | Comment | Organism | Structure |
|---|---|---|---|---|
| 5.5.1.4 | NAD+ | bound to the enzyme | Lemna gibba | |
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