Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Ag+ | weak inhibition | Aspergillus niger | |
Cd(CH3COO)2 | - |
Aspergillus niger | |
Cu2+ | complete inhibition at 5 mM | Aspergillus niger | |
Fe2+ | - |
Aspergillus niger | |
Fe3+ | - |
Aspergillus niger | |
K+ | weak inhibition | Aspergillus niger | |
Li+ | weak inhibition | Aspergillus niger | |
Mg2+ | weak inhibition | Aspergillus niger | |
Na+ | weak inhibition | Aspergillus niger | |
Pb(CH3COO)2 | - |
Aspergillus niger | |
Pb(NO3)2 | - |
Aspergillus niger | |
Zn2+ | - |
Aspergillus niger |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | Km for oat spelt xylan is 8.19 mg/ml, kinetics | Aspergillus niger |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
extracellular | - |
Aspergillus niger | - |
- |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Co2+ | activates weakly | Aspergillus niger | |
Mn2+ | activates | Aspergillus niger |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
33000 | - |
1 * 33000, SDS-PAGE | Aspergillus niger |
34000 | - |
gel filtration | Aspergillus niger |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
beta-1,4-xylan + H2O | Aspergillus niger | - |
? | - |
? | |
beta-1,4-xylan + H2O | Aspergillus niger B03 | - |
? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
- |
- |
Aspergillus niger B03 | - |
- |
- |
Posttranslational Modification | Comment | Organism |
---|---|---|
glycoprotein | the degree of glycosylation is 74.1% | Aspergillus niger |
Purification (Comment) | Organism |
---|---|
native enzyme 4fold by consecutive ultrafiltration and anion exchange chromatography | Aspergillus niger |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
475.1 | - |
purified native enzyme, beechwood xylan | Aspergillus niger |
497.2 | - |
purified native enzyme, birchwood xylan | Aspergillus niger |
529.9 | - |
purified native enzyme, oat spelt xylan | Aspergillus niger |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
beta-1,4-xylan + H2O | - |
Aspergillus niger | ? | - |
? | |
beta-1,4-xylan + H2O | from oat spelt, birchwood, or beechwood | Aspergillus niger | ? | - |
? | |
beta-1,4-xylan + H2O | - |
Aspergillus niger B03 | ? | - |
? | |
beta-1,4-xylan + H2O | from oat spelt, birchwood, or beechwood | Aspergillus niger B03 | ? | - |
? | |
additional information | endo mechanism of Xln-1 and substrate specificity, overview, no activity with carboxymethyl cellulose, starch, pectin, and 4-nitrophenyl-beta-D-xylopyranoside, and 4-nitrophenyl-beta-D-glucopyranoside | Aspergillus niger | ? | - |
? | |
additional information | endo mechanism of Xln-1 and substrate specificity, overview, no activity with carboxymethyl cellulose, starch, pectin, and 4-nitrophenyl-beta-D-xylopyranoside, and 4-nitrophenyl-beta-D-glucopyranoside | Aspergillus niger B03 | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
monomer | 1 * 33000, SDS-PAGE | Aspergillus niger |
Synonyms | Comment | Organism |
---|---|---|
endoxylanase | - |
Aspergillus niger |
Xln-1 | - |
Aspergillus niger |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
- |
Aspergillus niger |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | 70 | activity range, profile, overview | Aspergillus niger |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
purified native enzyme, pH 7.0, 120 min, 80% activity remaining | Aspergillus niger |
50 | - |
purified native enzyme, pH 5.0-7.0, 86% residual activity after 45 min, the crude enzyme retains only 6% of the initial activity | Aspergillus niger |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6 | - |
- |
Aspergillus niger |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
5 | 7 | purified native enzyme, 50°C, 86% residual activity after 45 min, the crude enzyme retains only 6% of the initial activity | Aspergillus niger |
7 | - |
purified native enzyme, 40°C, 120 min, 80% activity remaining | Aspergillus niger |