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Literature summary extracted from

  • Koga, D.; Sasaki, Y.; Uchiumi, Y.; Hirai, N.; Arakane, Y.; Nagamatsu, Y.
    Purification and characterization of Bombyx mori chitinases (1997), Insect Biochem. Mol. Biol., 27, 757-767.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.14 chitopentaose
-
Bombyx mori
3.2.1.14 CuSO4 isoenzyme 1 Bombyx mori
3.2.1.14 HgCl2 both isoenzymes Bombyx mori
3.2.1.14 tetraacetylchitotetraose
-
Bombyx mori

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.14 additional information
-
additional information isoenzyme 1 glycol chitin 0.134 mg/ml, isoenzyme 2 glycol chitin 0.023 mg/ml Bombyx mori

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.14 65000
-
x * 65000, SDS-PAGE, isoenzyme 1, x * 88000, SDS-PAGE, isoenzyme 2 Bombyx mori
3.2.1.14 88000
-
x * 65000, SDS-PAGE, isoenzyme 1, x * 88000, SDS-PAGE, isoenzyme 2 Bombyx mori

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.14 Bombyx mori
-
-
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
3.2.1.14 glycoprotein 65 and 88 kDa isoenzymes Bombyx mori

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.14 isoenzyme 1, 558fold to homogeneity, isoenzyme 2, 262fold to homogeneity Bombyx mori

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.14 larva fifth-instar larvae integument Bombyx mori
-

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 additional information
-
-
Bombyx mori

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.14 chitohexaose + H2O
-
Bombyx mori chitobiose + chitotriose and chitotetraose ?
3.2.1.14 chitopentaose + H2O
-
Bombyx mori chitobiose + chitotriose
-
?
3.2.1.14 chitotetraose + H2O
-
Bombyx mori N-acetylglucosamine + chitobiose + chitotriose chitobiose only ?
3.2.1.14 glycol chitin + H2O
-
Bombyx mori N-acetylglucosamine + ?
-
?
3.2.1.14 N,N',N''-triacetylchitotriose + H2O
-
Bombyx mori N-acetylglucosamine + N,N'-diacetylchitobiose
-
?

Subunits

EC Number Subunits Comment Organism
3.2.1.14 ? x * 65000, SDS-PAGE, isoenzyme 1, x * 88000, SDS-PAGE, isoenzyme 2 Bombyx mori

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.14 60
-
both isoenzymes Bombyx mori

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.14 30
-
stable below 30°C, isoenzyme 1 Bombyx mori
3.2.1.14 40
-
stable below 40°C Bombyx mori

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.2.1.14 0.059
-
glycol chitin isoenzyme 2 Bombyx mori
3.2.1.14 0.084
-
glycol chitin isoenzyme 1 Bombyx mori

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.14 5.5
-
N-acetylchitopentaose, isoenzyme 1 Bombyx mori
3.2.1.14 6.5
-
N-acetylchitopentaose, isoenzyme 2 Bombyx mori

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.14 4 10 both isoenzymes Bombyx mori

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.2.1.14 5 11 isoenzyme 1 Bombyx mori
3.2.1.14 6 12 isoenzyme 2 Bombyx mori