Any feedback?
Literature summary extracted from
- Purification and properties of two endo-1,4-beta-xylanases from Irpex lacteus (Polyporus tulipiferae) (1985), J. Biochem., 98, 1545-1554.
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.2.1.8 | Ag+ | AgNO3 | Irpex lacteus |  |
| 3.2.1.8 | Hg2+ | - |
Irpex lacteus | |
| 3.2.1.8 | Mn2+ | - |
Irpex lacteus | |
| 3.2.1.8 | Pb(CH3COO)2 | - |
Irpex lacteus | |
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.2.1.8 | Ca2+ | slight activation | Irpex lacteus | |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.8 | 38000 | - |
gel filtration | Irpex lacteus |
| 3.2.1.8 | 62000 | - |
x * 62000, SDS-PAGE | Irpex lacteus |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.2.1.8 | Irpex lacteus | - |
i.e. Polyporus tulipiferae | - |
Posttranslational Modification
| EC Number | Posttranslational Modification | Comment | Organism |
|---|---|---|---|
| 3.2.1.8 | glycoprotein | xylanase I contains 2.5% carbohydrate, xylanase III contains 8.0% carbohydrate | Irpex lacteus |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 3.2.1.8 | xylanase I and III | Irpex lacteus |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.8 | 8.25 | - |
xylanase III | Irpex lacteus |
| 3.2.1.8 | 11.94 | - |
xylanase I | Irpex lacteus |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.8 | 1,4-beta-D-xylan + H2O | larchwood xylan | Irpex lacteus | additional information | hyrolysis products formed by xylanase I are xylose, xylobiose and xylotriose. Xylobiose and xylotriose are the main products with xylanase III | ? | |
| 3.2.1.8 | pachyman + H2O | no activity | Irpex lacteus | ? | - |
? | |
| 3.2.1.8 | starch + H2O | no activity | Irpex lacteus | ? | - |
? | |
| 3.2.1.8 | xylobiose + H2O | no hydrolysis | Irpex lacteus | ? | - |
? | |
| 3.2.1.8 | xylotetraose + H2O | - |
Irpex lacteus | additional information | xylanase I produces xylobiose + xylose + xylotriose. Xylanase II produces only xylobiose in the early stage of reaction | ? | |
| 3.2.1.8 | xylotriose + H2O | hydrolyzed by xylanase I, no activity with xylanase III | Irpex lacteus | xylobiose + xylose | xylanase I | ? | |
Subunits
| EC Number | Subunits | Comment | Organism |
|---|---|---|---|
| 3.2.1.8 | ? | x * 62000, SDS-PAGE | Irpex lacteus |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.8 | 60 | - |
xylanase I | Irpex lacteus |
| 3.2.1.8 | 70 | - |
xylanase III | Irpex lacteus |
Temperature Stability [°C]
| EC Number | Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.8 | 60 | - |
pH 5.0, 10 min, stable up to | Irpex lacteus |
| 3.2.1.8 | 70 | - |
pH 5.0, 10 min, inactivated | Irpex lacteus |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.8 | 6 | - |
- |
Irpex lacteus |
pH Stability
| EC Number | pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.8 | 5 | 7 | 30°C, 24 h, xylanase II is stable | Irpex lacteus |
| 3.2.1.8 | 5 | 10 | 30°C, 24 h, xylanase I is stable | Irpex lacteus |
Use of this online version of BRENDA is free under the CC BY 4.0 license. See terms of use for full details.
Release 2023.1 (January 2023)
Legal
Curated at
Member of
