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Literature summary extracted from

  • Truong, N.H.; Park, S.M.; Nishizawa, Y.; Watanabe, T.; Sasaki, T.; Itoh, Y.
    Structure, heterologous expression, and properties of rice (Oryza sativa L.) family 19 chitinases (2003), Biosci. Biotechnol. Biochem., 67, 1063-1070.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.14 expression in Pichia pastoris Oryza sativa

Protein Variants

EC Number Protein Variants Comment Organism
3.2.1.14 OsChia1cDELTACBD deletion of chitosine-binding domain Oryza sativa

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.14 additional information
-
additional information OsChia1c: 0.9 mg/ml with colloidal chitin as substrate and 0.4 mg/ml with glycol chitin as substrate, OsChia1cDELTACBD: 1.2 mg/ml with colloidal chitin as substrate and 0.2 mg/ml with glycol chitin as substrate, OsChia2b: 1.9 mg/ml with colloidal chitin as substrate and 0.4 mg/ml with glycol chitin as substrate Oryza sativa

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.14 Oryza sativa
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.14
-
Oryza sativa

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 1.9
-
OsChia1cDELTACBD with colloidal chitin as substrate Oryza sativa
3.2.1.14 2.1
-
OsChia1c with colloidal chitin as substrate Oryza sativa
3.2.1.14 2.3
-
OsChia2b with colloidal chitin as substrate Oryza sativa
3.2.1.14 52
-
OsChia1c with colloidal glycol as substrate Oryza sativa
3.2.1.14 83
-
OsChia1cDELTACBD with glycol chitin as substrate Oryza sativa
3.2.1.14 116
-
OsChia2b with glycol chitin as substrate Oryza sativa

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.14 chitin + H2O colloidal Oryza sativa ?
-
?
3.2.1.14 glycol chitin + H2O
-
Oryza sativa ?
-
?
3.2.1.14 N,N',N'',N''',N'''',N'''''-hexaacetylchitohexaose + H2O
-
Oryza sativa N,N'-diacetylchitobiose + N,N',N'',N'''-tetraacetylchitotetraose + N,N',N''-triacetylchitotriose OsChia1c almost exclusively generates (GlcNAc)3 and small amounts of (GlcNAc)2 and (GlcNAc)4, OsChia2b hydrolyzes the substrate to predominantely yield (GlcNAc)2 ?
3.2.1.14 N,N',N'',N''',N''''-pentaacetylchitopentaose + H2O poorly hydrolyzed by OsChia1c but efficiently hydrolyzed by OsChia2b to predominantely yield (GlcNAc)2 Oryza sativa N,N'-diacetylchitobiose + N,N',N''-triacetylchitotriose
-
?
3.2.1.14 N,N',N'',N'''-tetraacetylchitotetraose + H2O poorly hydrolyzed by OsChia1c but efficiently hydrolyzed by OsChia2b to predominantely yield (GlcNAc)2 Oryza sativa 2 N,N'-diacetylchitobiose
-
?
3.2.1.14 N,N',N''-triacetylchitotriose + H2O OsChia2b Oryza sativa N-acetyl-D-glucosamine + N,N'-diacetylchitobiose
-
?

Synonyms

EC Number Synonyms Comment Organism
3.2.1.14 OsChia1c
-
Oryza sativa
3.2.1.14 OsChia1d
-
Oryza sativa
3.2.1.14 OsChia2a
-
Oryza sativa
3.2.1.14 OsChia2b
-
Oryza sativa
3.2.1.14 OsChia4a
-
Oryza sativa

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.14 65
-
-
Oryza sativa

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.14 4.8
-
OsChia1c and OsChia1cDELTACBD Oryza sativa
3.2.1.14 5.2
-
OsChia2b Oryza sativa