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Literature summary extracted from

  • John, M.; Schmidt, B.; Schmidt, J.
    Purification and some properties of five endo-1,4-beta-D-xylanases and a beta-D-xylosidase produced by a strain of Aspergillus niger (1979), Can. J. Biochem., 57, 125-134.
    View publication on PubMed

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.8 31000
-
xylanase II, gel filtration Aspergillus niger
3.2.1.8 50000
-
xylanase IA and IB, gel filtration Aspergillus niger

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.8 Aspergillus niger
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.8 xylanases: Ia, Ib, IIA, IIB, IIC and IID Aspergillus niger

Source Tissue

EC Number Source Tissue Comment Organism Textmining

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 Aspergillus niger additional information
-
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Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.8 50
-
xylanase II Aspergillus niger
3.2.1.8 65 80 xylanase IA and IB Aspergillus niger

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.8 40
-
15 min, significant inactivation Aspergillus niger
3.2.1.8 80
-
15 min, xylanase IA and Ib are rapidly inactivated above, xylanase II is completly inactivated Aspergillus niger

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.8 4
-
xylanase IIa, IIB and IIC Aspergillus niger
3.2.1.8 4 4.5 xylanase Ib Aspergillus niger
3.2.1.8 5.5 6 xylanase IA Aspergillus niger
3.2.1.8 6 6.5 xylanase IID Aspergillus niger

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.8 3 8 pH 3.0: about 90% of maximal activity, pH 8.0: about 25% of maximal activity, xylanase IB Aspergillus niger
3.2.1.8 3.5 8 pH 3.5: about 70% of maximal activity, pH 8.0: about 30% of maximal activity, xylanase IA Aspergillus niger