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Literature summary for 2.8.2.6 extracted from
- Choline-O-sulfate biosynthesis in plants (1994), Plant Physiol., 106, 1187-1193.
Activating Compound
| Activating Compound | Comment | Organism | Structure |
|---|---|---|---|
| NaCl | activity is increased at least 4fold by salinization with 40% v/v artificial sea water | Limonium perezii |  |
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| Ca2+ | - |
Limonium perezii | |
| Fe3+ | - |
Limonium perezii | |
| Mn2+ | - |
Limonium perezii | |
| additional information | no high-substrate inhibition can be detected | Limonium perezii | |
| Zn2+ | - |
Limonium perezii | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.0055 | - |
3'-phosphoadenylylsulfate | pH 9.0, 22°C | Limonium perezii | |
| 0.025 | - |
choline | pH 9.0, 22°C | Limonium perezii | |
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| Mg2+ | activation | Limonium perezii | |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| 3'-phosphoadenylylsulfate + choline | Limonium perezii | choline-O-sulfate-biosynthesis, plants accumulate nontoxic compatible osmolytes as osmoprotectants in response to salinity or drought stress | adenosine 3',5'-bisphosphate + choline sulfate | - |
ir | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Limonium latifolium | - |
(Sm.)O.Kuntze | - |
| Limonium nashii | - |
Small | - |
| Limonium perezii | - |
- |
- |
| Limonium ramosissimum | - |
G.Donelly | - |
| Limonium sinuatum | - |
Mill | - |
| no activity in Brassica napus | - |
L.cv. Westar | - |
| no activity in Brassica oleracea | - |
L.cv April Red | - |
| no activity in Helianthus annuus | - |
sunflower, L. cv Sundak | - |
| no activity in Hordeum vulgare | - |
barley, L. cv Proctor | - |
| no activity in Zea mays | - |
maize, L. cv COOP 6309 | - |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | - |
Limonium perezii | - |
| leaf | - |
Limonium latifolium | - |
| leaf | - |
Limonium nashii | - |
| leaf | - |
Limonium ramosissimum | - |
| leaf | - |
Limonium sinuatum | - |
| root | - |
Limonium perezii | - |
| root | - |
Limonium latifolium | - |
| root | - |
Limonium nashii | - |
| root | - |
Limonium ramosissimum | - |
| root | - |
Limonium sinuatum | - |
| seed | - |
Limonium perezii | - |
| seed | - |
Limonium latifolium | - |
| seed | - |
Limonium nashii | - |
| seed | - |
Limonium ramosissimum | - |
| seed | - |
Limonium sinuatum | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| 3'-phosphoadenylylsulfate + choline | - |
Limonium perezii | adenosine 3',5'-bisphosphate + choline sulfate | - |
ir | |
| 3'-phosphoadenylylsulfate + choline | choline-O-sulfate-biosynthesis, plants accumulate nontoxic compatible osmolytes as osmoprotectants in response to salinity or drought stress | Limonium perezii | adenosine 3',5'-bisphosphate + choline sulfate | - |
ir | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 9 | - |
- |
Limonium perezii |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 7.6 | 9.9 | about 50% of activity maximum at pH 7.6, about 70% of activity maximum at pH 9.9 | Limonium perezii |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 7.6 | - |
retains 50% of its activity | Limonium perezii |
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