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Literature summary for 3.2.1.52 extracted from

  • Jones, C.S.; Kosman, D.J.
    Purification, properties, kinetics, and mechanism of beta-N-acetylglucosaminidase from Aspergillus niger (1980), J. Biol. Chem., 255, 11861-11869.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Ag+ 100 mM Aspergillus niger
Ca2+ 100 mM Aspergillus niger
Cu2+ 100 mM Aspergillus niger
Hg2+ 100 mM Aspergillus niger
N-acetyl-beta-D-glucosaminolactone
-
Aspergillus niger
N-acetyl-D-glucosamine
-
Aspergillus niger
p-thiophenyl-1-thio-N-acetyl-beta-D-glucosaminide
-
Aspergillus niger
Zn2+ 100 mM Aspergillus niger

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.27
-
2,4-dinitrophenyl-N-acetyl-beta-D-glucosaminide
-
Aspergillus niger
0.34
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
-
Aspergillus niger
0.86
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside
-
Aspergillus niger
1.3
-
p-nitrophenyl-thio-beta-N-acetyl-D-glucosaminide
-
Aspergillus niger

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
149000
-
gel filtration and amino acid composition Aspergillus niger

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
N-acetyl-beta-D-hexosaminides + H2O Aspergillus niger
-
N-acetyl-D-hexosamines
-
?

Organism

Organism UniProt Comment Textmining
Aspergillus niger
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein mannosylation Aspergillus niger
glycoprotein galactosylation Aspergillus niger
glycoprotein N-acetyl-glucosaminylation Aspergillus niger
glycoprotein fucosylation Aspergillus niger

Purification (Commentary)

Purification (Comment) Organism
2 isozymes, 153fold to homogeneity Aspergillus niger

Reaction

Reaction Comment Organism Reaction ID
(N-acetyl-D-glucosamine)4 + 3 H2O = 4 2-(acetylamino)-2-deoxy-beta-D-glucopyranose exo-type reaction 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.
2,4-dinitrophenyl-N-acetyl-beta-D-glucosaminide + H2O
-
Aspergillus niger 2,4-dinitrophenol + N-acetyl-beta-D-glucosaminide
-
?
additional information
-
Aspergillus niger ?
-
?
N-acetyl-beta-D-hexosaminides + H2O
-
Aspergillus niger N-acetyl-D-hexosamines
-
?
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside + H2O
-
Aspergillus niger 2-acetamido-2-deoxy-D-galactose + p-nitrophenol
-
?
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside + H2O
-
Aspergillus niger 2-acetamido-2-deoxy-D-glucose + p-nitrophenol
-
?
p-nitrophenyl-thio-beta-N-acetyl-D-glucosaminide + H2O
-
Aspergillus niger 4-nitrophenol + thio-beta-N-acetyl-D-glucosaminide
-
?

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
additional information
-
additional information
-
Aspergillus niger
0.0167
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside in D2O, pD 7.0 Aspergillus niger
0.0212
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside in D2O, pD 4.6 Aspergillus niger
2.83
-
p-nitrophenyl-thio-beta-N-acetyl-D-glucosaminide
-
Aspergillus niger
38.3
-
2,4-dinitrophenyl-N-acetyl-beta-D-glucosaminide
-
Aspergillus niger
110
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside
-
Aspergillus niger
187
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
-
Aspergillus niger

pH Range

pH Minimum pH Maximum Comment Organism
additional information
-
-
Aspergillus niger

pH Stability

pH Stability pH Stability Maximum Comment Organism
additional information
-
-
Aspergillus niger