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Literature summary for 2.4.1.99 extracted from
- Inhibition of sucrose:sucrose fructosyl transferase by cationic and ionic strength (1993), Plant Physiol., 101, 589-594.
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| Ca2+ | - |
Allium cepa |  |
| Ca2+ | 10 mM, 62% inhibition | Triticum aestivum | |
| choline chloride | - |
Triticum aestivum | |
| Cu2+ | - |
Allium cepa | |
| Cu2+ | 10 mM, 89% inhibition | Triticum aestivum | |
| K+ | no inhibition by KCl | Allium cepa | |
| K+ | no inhibition by KCl | Asparagus officinalis | |
| K+ | - |
Dactylis glomerata | |
| K+ | - |
Hordeum vulgare | |
| K+ | 10 mM KCl, 20% inhibition, inhibition by ionic stength may be responsible for approximately 50% of the KCl inhibition | Triticum aestivum | |
| Mn2+ | - |
Allium cepa | |
| Mn2+ | - |
Asparagus officinalis | |
| Mn2+ | 10 mM, 44% inhibition | Triticum aestivum | |
| Zn2+ | 10 mM, 91% inhibition | Triticum aestivum | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 266 | - |
sucrose | - |
Triticum aestivum | |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| sucrose + sucrose | Hordeum vulgare | - |
D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
| sucrose + sucrose | Triticum aestivum | first enzyme in the biosynthetic pathway of most fructans | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Allium cepa | - |
- |
- |
| Asparagus officinalis | - |
- |
- |
| Dactylis glomerata | - |
- |
- |
| Hordeum vulgare | - |
- |
- |
| Triticum aestivum | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| bulb | - |
Allium cepa | - |
| leaf | - |
Triticum aestivum | - |
| leaf | - |
Hordeum vulgare | - |
| leaf | - |
Dactylis glomerata | - |
| stem | - |
Asparagus officinalis | - |
| stem | - |
Triticum aestivum | - |
| stem | - |
Hordeum vulgare | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| sucrose + sucrose | - |
Asparagus officinalis | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
| sucrose + sucrose | - |
Triticum aestivum | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
| sucrose + sucrose | - |
Hordeum vulgare | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
| sucrose + sucrose | - |
Allium cepa | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
| sucrose + sucrose | - |
Dactylis glomerata | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
| sucrose + sucrose | first enzyme in the biosynthetic pathway of most fructans | Triticum aestivum | D-glucose + 1F-beta-D-fructosylsucrose | - |
? | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 5.5 | - |
- |
Triticum aestivum |
Ki Value [mM]
| Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 122 | - |
K+ | - |
Triticum aestivum | |
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