Any feedback?
Literature summary for 2.3.1.143 extracted from
- Biosynthesis of gallotannins: beta-glucogallin-dependent formation of 1,2,3,4,6-pentagalloylglucose by enzymatic galloylation of 1,2,3,6-tetragalloylglucose (1989), Arch. Biochem. Biophys., 273, 58-63.
General Stability
| General Stability | Organism |
|---|---|
| 0-4°C, within 1-2 weeks no significant loss of activity | Quercus rubra |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 1 | - |
1,2,3,6-tetra-O-galloyl-beta-D-glucose | - |
Quercus rubra |  |
| 2.3 | - |
1-O-Galloyl-beta-D-glucose | - |
Quercus rubra | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 260000 | - |
gel filtration | Quercus rubra |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Quercus rubra | - |
oak | - |
Oxidation Stability
| Oxidation Stability | Organism |
|---|---|
| O2-sensitive, buffers have to be supplemented with 5 mM 2-mercaptoethanol | Quercus rubra |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| partial | Quercus rubra |
Reaction
| Reaction | Comment | Organism | Reaction ID |
|---|---|---|---|
| 1-O-galloyl-beta-D-glucose + 1,2,3,6-tetrakis-O-galloyl-beta-D-glucose = D-glucose + 1,2,3,4,6-pentakis-O-galloyl-beta-D-glucose | stoichiometry | Quercus rubra |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | - |
Quercus rubra | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| 1-O-galloyl-beta-D-glucose + 1,2,3,6-tetra-O-galloyl-beta-D-glucose | 1-O-galloyl-beta-D-glucose is beta-glucogallin, no activity with 1,2,4,6-isomer | Quercus rubra | D-glucose + 1,2,3,4,6-penta-O-galloyl-beta-D-glucose | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 40 | - |
- |
Quercus rubra |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| additional information | - |
some activity at 0°C | Quercus rubra |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 6.3 | - |
- |
Quercus rubra |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 8 | 50% of maximal activity at pH 4.0 and pH 8.0 | Quercus rubra |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 5 | 6.5 | - |
Quercus rubra |
Use of this online version of BRENDA is free under the CC BY 4.0 license. See terms of use for full details.
Release 2026.1 (March 2026)
Legal
Curated at
Member of
![DSMZ Digital Diversity]()
![Global Core Biodata Resource]()
![ELIXIR Core Data Resource]()
![German Network for Bioinformatics Infrastructure]()
