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Literature summary for 3.2.1.52 extracted from

  • Woollen, J.W.; Heymorth, R.; Walker, P.G.
    Studies on glucosaminidases. 3. Testicular N-acetyl-beta-D-glucosaminidase and N-acetyl-beta-D-galactosaminidase (1961), Biochem. J., 78, 111-116.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
bovine serum albumin prevents loss of activity caused by dilution Ovis aries
Triton X-100 prevents loss of activity caused by dilution Ovis aries

Inhibitors

Inhibitors Comment Organism Structure
2-acetamido-2-deoxy-D-galactonolactone
-
Ovis aries
N-acetyl-beta-D-glucosaminolactone
-
Ovis aries
N-acetyl-D-galactosamine
-
Ovis aries
N-acetyl-D-glucosamine
-
Ovis aries
phenyl N-acetylgalactosaminide
-
Ovis aries
phenyl N-acetylglucosaminide
-
Ovis aries

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.28
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside
-
Ovis aries
1
-
phenyl-N-acetyl-beta-D-glucosaminide
-
Ovis aries
1
-
phenyl-N-acetyl-beta-D-galactosaminide
-
Ovis aries
1.18
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
-
Ovis aries

Natural Substrates/ Products (Substrates)

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

Organic Solvent Stability

Organic Solvent Comment Organism
Triton X-100 prevents loss of activity caused by dilution Ovis aries

Organism

Organism UniProt Comment Textmining
Ovis aries
-
male
-

Reaction

Reaction Comment Organism Reaction ID
(N-acetyl-D-glucosamine)4 + 3 H2O = 4 2-(acetylamino)-2-deoxy-beta-D-glucopyranose same active site for N-glucosaminidase and N-galactosaminidase activities Ovis aries

Source Tissue

Source Tissue Comment Organism Textmining
testis
-
Ovis aries
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N-acetyl-beta-D-hexosaminides + H2O
-
Ovis aries N-acetyl-D-hexosamines
-
?
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside + H2O
-
Ovis aries 2-acetamido-2-deoxy-D-galactose + p-nitrophenol
-
?
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside + H2O
-
Ovis aries 2-acetamido-2-deoxy-D-glucose + p-nitrophenol
-
?
phenyl N-acetyl-beta-D-galactosaminide + H2O
-
Ovis aries phenol + N-acetyl-beta-D-galactosaminide
-
?
phenyl-N-acetyl-beta-D-glucosaminide + H2O
-
Ovis aries phenol + N-acetyl-beta-D-glucosaminide
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
56
-
at pH 4.5, loss of 30% of activity after 6 min Ovis aries

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.3
-
N-acetylgalactosaminidase activity Ovis aries
4.5
-
N-acetylglucosamnidase activity, first optimum Ovis aries
4.7
-
N-acetylglucosamnidase activity, second optimum Ovis aries