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Literature summary for 3.2.1.50 extracted from

  • von Figura, K.
    Human alpha-N-acetylglucosaminidase. 2. Activity towards natural substrates and multiple recognition forms (1977), Eur. J. Biochem., 80, 535-542.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
bovine serum albumin
-
Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.043 0.61 o-nitrophenyl-alpha-N-acetylglucosaminide 0.23-0.25 in the presence of 0.025% bovine serum albumin Homo sapiens
0.12 1.6 phenyl-alpha-N-acetylglucosaminide 0.46-0.66 in the presence of 0.025% bovine serum albumin Homo sapiens
0.13 0.2 p-nitrophenyl-alpha-N-acetylglucosaminide 0.21-0.55 in the presence of 0.025% bovine serum albumin Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
(GlcNAcalpha(1-4))n + H2O Homo sapiens involved in the degradation of heparin and heparan sulfate (GlcNAcalpha(1-4))n-1 + 2-(acetylamino)-2-deoxy-beta-D-glucopyranose
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Oxidation Stability

Oxidation Stability Organism
oxidation by periodate causes loss of 28% of activity after treatment with 10 mM at 4°C for 240 min Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
urine
-
Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(GlcNAcalpha(1-4))n + H2O involved in the degradation of heparin and heparan sulfate Homo sapiens (GlcNAcalpha(1-4))n-1 + 2-(acetylamino)-2-deoxy-beta-D-glucopyranose
-
?
heparan sulfate + H2O
-
Homo sapiens N-acetyl-alpha-D-glucosamine
-
?
heparin + H2O
-
Homo sapiens N-acetyl-alpha-D-glucosamine + ?
-
?
phenyl-N-acetyl-alpha-D-glucosaminide + H2O
-
Homo sapiens phenol + N-acetyl-alpha-D-glucosamine
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.4
-
heparan sulfate Homo sapiens
4.4
-
heparin Homo sapiens

pH Range

pH Minimum pH Maximum Comment Organism
3.5 6.5
-
Homo sapiens