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Literature summary for 5.3.1.8 extracted from
- Phosphomannoisomerase and phosphoglucoisomerase in seeds of Cassia coluteoides and some other legumes that synthesize galactomannan (1984), Phytochemistry, 23, 983-987.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| 6-phospho-2-deoxygluconate | competitive | Cassia coluteoides |  |
| 6-phosphogluconate | slight inhibition | Cassia coluteoides | |
| 6-Phosphomannonate | competitive | Cassia coluteoides | |
| erythrose 4-phosphate | D-erythrose 4-phosphate, competitive | Cassia coluteoides | |
| mannitol 1-phosphate | competitive | Cassia coluteoides | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 1.6 | - |
mannose 6-phosphate | enzyme from developing seeds | Cassia coluteoides | |
| 1.9 | - |
mannose 6-phosphate | enzyme from germinating seeds | Cassia coluteoides | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 54000 | - |
gel filtration | Cyamopsis tetragonoloba |
| 59000 | - |
gel filtration | Glycine max |
| 63000 | - |
gel filtration | Trigonella foenum-graecum |
| 67000 | - |
enzyme from seeds, gel filtration | Cassia coluteoides |
| 68000 | - |
enzyme from pods, gel filtration | Cassia coluteoides |
| 74500 | - |
enzyme from pods and seeds, density gradient centrifugation | Cassia coluteoides |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| D-Mannose 6-phosphate | Cassia coluteoides | enzyme is involved in the utilization of mannose released by hydrolysis of galactomannan on germination after phosphorylation to mannose 6-phosphate | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Cassia coluteoides | - |
- |
- |
| Cyamopsis tetragonoloba | - |
- |
- |
| Glycine max | - |
- |
- |
| Trigonella foenum-graecum | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| pod | - |
Glycine max | - |
| pod | - |
Cassia coluteoides | - |
| pod | - |
Cyamopsis tetragonoloba | - |
| pod | - |
Trigonella foenum-graecum | - |
| seed | developing and germinating | Cassia coluteoides | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| D-Mannose 6-phosphate | - |
Glycine max | D-Fructose 6-phosphate | - |
? | |
| D-Mannose 6-phosphate | - |
Cassia coluteoides | D-Fructose 6-phosphate | - |
? | |
| D-Mannose 6-phosphate | - |
Cyamopsis tetragonoloba | D-Fructose 6-phosphate | - |
? | |
| D-Mannose 6-phosphate | - |
Trigonella foenum-graecum | D-Fructose 6-phosphate | - |
? | |
| D-Mannose 6-phosphate | enzyme is involved in the utilization of mannose released by hydrolysis of galactomannan on germination after phosphorylation to mannose 6-phosphate | Cassia coluteoides | ? | - |
? | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7 | - |
- |
Cassia coluteoides |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 6 | 11 | pH 6.0: 50% of maximal activity, relative high activity up to pH 11 | Cassia coluteoides |
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