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Literature summary for 2.4.1.91 extracted from
- Isolation and characterization of a UDPglucose:flavonol O3-glucosyltransferase from illuminated red cabbage (Brassica oleracea cv. Red Danish) seedlings (1991), Plant Physiol., 95, 570-576.
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.007 | - |
quercetin | - |
Brassica oleracea |  |
| 0.012 | - |
kaempferol | - |
Brassica oleracea | |
| 0.18 | - |
UDPglucose | - |
Brassica oleracea | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 59000 | - |
gel filtration | Brassica oleracea |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| UDPglucose + a flavonol | Brassica oleracea | enzyme is specific for flavonol glucoside biosynthesis | UDP + a flavonol 3-O-D-glucoside | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Brassica oleracea | - |
cv. Red Danish | - |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Brassica oleracea |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| seedling | - |
Brassica oleracea | - |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| additional information | - |
- |
Brassica oleracea |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| UDPglucose + a flavonol | enzyme is specific for flavonol glucoside biosynthesis | Brassica oleracea | UDP + a flavonol 3-O-D-glucoside | - |
? | |
| UDPglucose + kaempferol | - |
Brassica oleracea | UDP + kaempferol 3-O-glucoside | - |
? | |
| UDPglucose + quercetin | - |
Brassica oleracea | UDP + quercetin 3-O-glucoside | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| dimer | 2 * 59000, SDS-PAGE | Brassica oleracea |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 5.8 | 6.2 | - |
Brassica oleracea |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 4.5 | 8 | pH 4.5: about 80% of maximal activity, pH 8.0: about 55% of maximal activity | Brassica oleracea |
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Release 2023.1 (January 2023)
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