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Literature summary extracted from

  • Takenishi, S.; Tsujisaka, Y.; Fukumoto, J.
    Studies on hemicellulases IV. Purification and properties of the beta-xylosidase produced by Aspergillus niger van Tieghem (1973), J. Biochem., 73, 335-343.
    View publication on PubMed

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.37 extracellular
-
 Aspergillus niger
-
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.37 xylo-oligosaccharides + H2O Aspergillus niger decrease of activity with increasing polymerization of substrates beta-D-xylose + ?
-
 ?
3.2.1.37 xylobiose + H2O Aspergillus niger most rapidly hydrolyzed beta-D-xylose + D-xylose
-
 ?
3.2.1.37 xylobiose + H2O Aspergillus niger transxylosylation activity xylotriose + ?
-
 ?

Organism

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

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.37 to homogeneity by 3step chromatography Aspergillus niger

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.37 cell culture
-
 Aspergillus niger
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.37 4.2
-
-
 Aspergillus niger

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.37 3 xylotriose transxylosylation activity Aspergillus niger xylotetraose + xylopentaose
-
 ?
3.2.1.37 phenyl beta-D-xylopyranoside + H2O
-
 Aspergillus niger phenol + beta-D-xylopyranose
-
 ?
3.2.1.37 xylo-oligosaccharides + H2O decrease of activity with increasing polymerization of substrates Aspergillus niger beta-D-xylose + ?
-
 ?
3.2.1.37 xylobiose + H2O most rapidly hydrolyzed Aspergillus niger beta-D-xylose + D-xylose
-
 ?
3.2.1.37 xylobiose + H2O transxylosylation activity Aspergillus niger xylotriose + ?
-
 ?
3.2.1.37 xylobiosylxylitol + H2O
-
 Aspergillus niger xylose + xylitol
-
 ?
3.2.1.37 xylopentaose + H2O
-
 Aspergillus niger beta-D-xylose + ?
-
 ?
3.2.1.37 xylosylxylitol + H2O
-
 Aspergillus niger xylose + xylitol
-
 ?
3.2.1.37 xylotetraose + H2O
-
 Aspergillus niger xylotriose + beta-D-xylose
-
 ?
3.2.1.37 xylotriose + H2O
-
 Aspergillus niger beta-D-xylose + xylobiose
-
 ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.37 3 4
-
 Aspergillus niger

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.2.1.37 4 7 stable at 30°C for 24 h, at 70°C for 15 min Aspergillus niger