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Literature summary for 2.4.2.24 extracted from
- Arabidopsis family GT43 members are xylan xylosyltransferases required for the elongation of the xylan backbone (2012), Plant Cell Physiol., 53, 135-143.
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
| heterologously expressed in tobacco BY2 cells | Arabidopsis thaliana |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| microsome | - |
Arabidopsis thaliana | - |
- |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Arabidopsis thaliana | Q8L707 | - |
- |
| Arabidopsis thaliana | Q9ZQC6 | - |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| stem | - |
Arabidopsis thaliana | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| UDP-D-xylose + (1,4-beta-D-xylan)n | microsomes isolated from transgenic BY2 cells are tested for XylT activity using xylotetraose (Xyl4) as an acceptor and UDP-xylose as a donor. Up to five xylosyl residues with beta-(1,4)-linkages are able to be incorporated by IRX9/IRX14-expressing microsomes | Arabidopsis thaliana | UDP + (1,4-beta-D-xylan)n+1 | - |
? |  |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| irregular xylem14 | - |
Arabidopsis thaliana |
| irregular xylem9 | - |
Arabidopsis thaliana |
| IRX14 | - |
Arabidopsis thaliana |
| IRX9 | - |
Arabidopsis thaliana |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 21 | - |
assay at | Arabidopsis thaliana |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 6.8 | - |
assay at | Arabidopsis thaliana |
General Information
| General Information | Comment | Organism |
|---|---|---|
| metabolism | IRX9 and IRX14 are xylosyltransferases that operate cooperatively in the elongation of the xylan backbone | Arabidopsis thaliana |
| physiological function | microsomes isolated from cells with co-expression of IRX9 and IRX14 exhibit a high level of XylT activity toward xylooligomer acceptors, whereas those from cells with expression of IRX9 or IRX14 alone do not | Arabidopsis thaliana |
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Release 2023.1 (January 2023)
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