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Literature summary extracted from

  • Koga, K.; Iwamoto, Y.; Sakamoto, H.; Hatano, K.; Sano, M.; Kato, I.
    Purification and characterization of beta-N-acetylhexosaminidase from Trichoderma harzianum (1991), Agric. Biol. Chem., 55, 2817-2823.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.52 Ag+ with 1 mM 43% of N-acetylgalactosaminidase and 59% of N-acetylglucosaminidase activity remains Trichoderma harzianum
3.2.1.52 Hg2+ with 1 mM 84% of N-acetylgalactosaminidase and 90% of N-acetylglucosaminidase activity remains Trichoderma harzianum
3.2.1.52 N-acetyl-D-glucosamine inhibits N-acetylgalactosaminidase activity Trichoderma harzianum

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.52 0.24
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
-
Trichoderma harzianum
3.2.1.52 27
-
pyridylamino-glycoside B
-
Trichoderma harzianum
3.2.1.52 30
-
pyridylamino-glycoside C
-
Trichoderma harzianum
3.2.1.52 440
-
pyridylamino-glycoside A
-
Trichoderma harzianum

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.52 extracellular
-
Trichoderma harzianum
-
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.52 69000
-
SDS-PAGE Trichoderma harzianum
3.2.1.52 150000
-
gel filtration Trichoderma harzianum

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.52 N-acetyl-beta-D-hexosaminides + H2O Trichoderma harzianum
-
N-acetyl-D-hexosamines
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.52 Trichoderma harzianum
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.52 13.2fold to homogeneity Trichoderma harzianum

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.52 culture filtrate
-
Trichoderma harzianum
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.52 0.0000085
-
substrate: pyridylamino-glycoside A Trichoderma harzianum
3.2.1.52 0.0014
-
substrate: pyridylamino-glycoside C Trichoderma harzianum
3.2.1.52 0.91
-
substrate: pyridylamino-glycoside B Trichoderma harzianum
3.2.1.52 102
-
-
Trichoderma harzianum

Storage Stability

EC Number Storage Stability Organism
3.2.1.52 -20°C Trichoderma harzianum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.52 hexa-N-acetylchitohexaose + H2O
-
Trichoderma harzianum ?
-
?
3.2.1.52 N,N',N'',N'''-tetraacetylchitotetraose + 3 H2O
-
Trichoderma harzianum 4 N-acetyl-D-glucosamine
-
?
3.2.1.52 N,N'-diacetylchitobiose + H2O
-
Trichoderma harzianum N-acetyl-D-glucosamine
-
?
3.2.1.52 N-acetyl-beta-D-hexosaminides + H2O
-
Trichoderma harzianum N-acetyl-D-hexosamines
-
?
3.2.1.52 p-nitrophenyl tetra-N-acetylchitotetraoside + H2O
-
Trichoderma harzianum N-acetylglucosamine
-
?
3.2.1.52 p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside + H2O
-
Trichoderma harzianum 2-acetamido-2-deoxy-D-galactose + p-nitrophenol
-
?
3.2.1.52 p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside + H2O
-
Trichoderma harzianum 2-acetamido-2-deoxy-D-glucose + p-nitrophenol
-
?
3.2.1.52 penta-N-acetylchitopentaose + H2O
-
Trichoderma harzianum ?
-
?
3.2.1.52 pyridylamino-glycoside A + H2O pyridylamino-GlcNAcbeta(1-4)GlcNAc Trichoderma harzianum ?
-
?
3.2.1.52 pyridylamino-glycoside B + H2O pyridylamino-GlcNAcbeta(1-4)GlcNAcbeta(1-4)GlcNAc Trichoderma harzianum ?
-
?
3.2.1.52 pyridylamino-glycoside C + H2O pyridylamino-GlcNAcbeta(1-3)GalNAc(1-4)Glc Trichoderma harzianum ?
-
?
3.2.1.52 tri-N-acetylchitotriose + H2O
-
Trichoderma harzianum N-acetyl-D-glucosamine
-
?

Subunits

EC Number Subunits Comment Organism
3.2.1.52 dimer 2 * 69000 Trichoderma harzianum

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.52 50
-
at pH 5.2 Trichoderma harzianum

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.52 30
-
below: completely stable for 30 min Trichoderma harzianum
3.2.1.52 65
-
over 50% of activity remains after 30 min Trichoderma harzianum

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.52 4 5.5
-
Trichoderma harzianum

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.2.1.52 2.5 10 not less than 80% of activity remains, at 5°C for 1 h Trichoderma harzianum
3.2.1.52 3 9 not less than 80% of activity remains, at 37°C for 1 h Trichoderma harzianum