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Literature summary extracted from

  • Mommsen, T.P.
    Chitinase and beta-N-acetylglucosaminidase from the digestive fluid of the spider, Cupiennius salei (1980), Biochim. Biophys. Acta, 612, 361-372.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.52 2-deoxy-2-acetamido-D-glucono(1-5)lactone
-
Cupiennius salei
3.2.1.52 Glucosamine-HCl
-
Cupiennius salei
3.2.1.52 N,N-diacetylchitobiose
-
Cupiennius salei
3.2.1.52 N-acetyl-D-galactosamine
-
Cupiennius salei
3.2.1.52 N-acetyl-D-glucosamine
-
Cupiennius salei
3.2.1.52 N-acetylglucosamine(1-5)lactone
-
Cupiennius salei
3.2.1.52 N-acetylleucine
-
Cupiennius salei
3.2.1.52 N-acetylmannosamine
-
Cupiennius salei

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.52 0.35
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
-
Cupiennius salei
3.2.1.52 0.77
-
4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-glucopyranoside
-
Cupiennius salei
3.2.1.52 0.93
-
N,N-diacetylchitobiose
-
Cupiennius salei
3.2.1.52 1.05
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside
-
Cupiennius salei
3.2.1.52 1.23
-
4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-galactopyranoside
-
Cupiennius salei

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.52 extracellular
-
Cupiennius salei
-
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.14 48000
-
PAGE, gel filtration Cupiennius salei
3.2.1.52 108000
-
native PAGE Cupiennius salei

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 Cupiennius salei
-
N-acetyl-D-hexosamines
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.14 Cupiennius salei
-
-
-
3.2.1.52 Cupiennius salei
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.52 160fold to homogeneity Cupiennius salei

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.52 digestive juice
-
Cupiennius salei
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.14 1.725
-
-
Cupiennius salei
3.2.1.52 additional information
-
-
Cupiennius salei
3.2.1.52 15.85
-
substrate: N,N-diacetylchitobiose Cupiennius salei

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.14 chitin + H2O from ground crab shell Cupiennius salei N,N-diacetylchitobiose + N-acetylglucosamine chitobiose, chitotriose and N-acetylglucosamine ?
3.2.1.52 4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-galactopyranoside + H2O
-
Cupiennius salei 4-methylumbelliferone + 2-acetamido-2-deoxy-beta-D-galactopyranoside
-
?
3.2.1.52 4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-glucopyranoside + H2O
-
Cupiennius salei 4-methylumbelliferone + 2-acetamido-2-deoxy-beta-D-glucopyranoside
-
?
3.2.1.52 N,N'-diacetylchitobiose + H2O
-
Cupiennius salei N-acetyl-D-glucosamine
-
?
3.2.1.52 N-acetyl-beta-D-hexosaminides + H2O
-
Cupiennius salei N-acetyl-D-hexosamines
-
?
3.2.1.52 p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside + H2O
-
Cupiennius salei 2-acetamido-2-deoxy-D-galactose + p-nitrophenol
-
?
3.2.1.52 p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside + H2O
-
Cupiennius salei 2-acetamido-2-deoxy-D-glucose + p-nitrophenol
-
?

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.52 additional information
-
-
Cupiennius salei
3.2.1.52 30
-
rather stable at pH 5.0-7.0 Cupiennius salei

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.2.1.52 2.8
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside
-
Cupiennius salei
3.2.1.52 28.5
-
N,N-diacetylchitobiose
-
Cupiennius salei
3.2.1.52 30.2
-
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
-
Cupiennius salei

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.52 5.4
-
chromogenic substrates Cupiennius salei
3.2.1.52 6.5
-
substrate: N,N'-diacetylchitobiose Cupiennius salei