Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.2.1.139 extracted from

  • Uchida, H.; Nanri, T.; Kawabata, Y.; Kusakabe, I.; Murakami, K.
    Purification and characterization of intracellular alpha-glucuronidase from Aspergillus niger 5-16 (1992), Biosci. Biotechnol. Biochem., 56, 1608-1615.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ag+
-
Aspergillus niger
Al3+
-
Aspergillus niger
Fe2+
-
Aspergillus niger
Fe3+
-
Aspergillus niger
Hg2+
-
Aspergillus niger
Monoiodoacetic acid
-
Aspergillus niger
N-bromosuccinimide
-
Aspergillus niger
SDS
-
Aspergillus niger
Sn2+
-
Aspergillus niger

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.37
-
4-O-Methyl-glucuronosyl-xylotriose enzyme form CM-I Aspergillus niger
0.47
-
4-O-Methyl-glucuronosyl-xylotriose enzyme form CM-II Aspergillus niger
0.77
-
glucuronosyl-xylotriose enzyme form CM-I Aspergillus niger
0.82
-
glucuronosyl-xylotriose enzyme form CM-II Aspergillus niger

Localization

Localization Comment Organism GeneOntology No. Textmining
intracellular
-
Aspergillus niger 5622
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
130000
-
1 * 130000, SDS-PAGE Aspergillus niger
150000
-
gel filtration Aspergillus niger

Organism

Organism UniProt Comment Textmining
Aspergillus niger
-
-
-
Aspergillus niger 5-16
-
-
-

Purification (Commentary)

Purification (Comment) Organism
2 enzym forms: CM-I and CM-II Aspergillus niger

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Aspergillus niger

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-O-methyl-glucuronosyl-xylotriose + H2O
-
Aspergillus niger 4-O-methyl-glucuronate + xylotriose
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
-
Aspergillus niger 5-16 4-O-methyl-glucuronate + xylotriose
-
?
glucuronosyl-xylotriose + H2O
-
Aspergillus niger glucuronate + xylotriose
-
?
glucuronosyl-xylotriose + H2O
-
Aspergillus niger 5-16 glucuronate + xylotriose
-
?

Subunits

Subunits Comment Organism
monomer 1 * 130000, SDS-PAGE Aspergillus niger

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Aspergillus niger

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
pH 4.5-7.0, 1 h, stable Aspergillus niger

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.8
-
-
Aspergillus niger

pH Range

pH Minimum pH Maximum Comment Organism
4 5.6 about 50% of maximal activity at pH 4.5 and 5.6 Aspergillus niger

pH Stability

pH Stability pH Stability Maximum Comment Organism
4.5 7 50°C, 1 h, stable Aspergillus niger