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Literature summary for 3.2.1.4 extracted from

  • Zhou, Y.; Wang, X.; Wei, W.; Xu, J.; Wang, W.; Xie, Z.; Zhang, Z.; Jiang, H.; Wang, Q.; Wei, C.
    A novel efficient beta-glucanase from a paddy soil microbial metagenome with versatile activities (2016), Biotechnol. Biofuels, 9, 36.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli uncultured bacterium

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.62
-
cellopentaose pH 7.0, 37°C uncultured bacterium
1.4
-
4-nitrophenyl D-cellobioside pH 7.0, 37°C uncultured bacterium
5.1
-
cellohexaose pH 7.0, 37°C uncultured bacterium
13.3
-
Barley beta-glucan pH 7.0, 37°C uncultured bacterium
18.3
-
cellotetraose pH 7.0, 37°C uncultured bacterium
20.8
-
carboxymethyl cellulose pH 7.0, 37°C uncultured bacterium
28.3
-
hydroxyethylcellulose pH 7.0, 37°C uncultured bacterium
47.3
-
Laminarin pH 7.0, 37°C uncultured bacterium
151.7
-
cellotriose pH 7.0, 37°C uncultured bacterium

Organism

Organism UniProt Comment Textmining
uncultured bacterium F4YTG7 isolated from paddy soil
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl D-cellobioside + H2O
-
uncultured bacterium 4-nitrophenol + D-cellobiose
-
?
barley beta-glucan + H2O
-
uncultured bacterium ?
-
?
carboxymethyl cellulose + H2O
-
uncultured bacterium D-glucose + ?
-
?
cellohexaose + 5 H2O
-
uncultured bacterium 6 D-glucose
-
?
cellopentaose + 4 H2O
-
uncultured bacterium 5 D-glucose
-
?
cellotetraose + 3 H2O
-
uncultured bacterium 4 D-glucose
-
?
cellotriose + 2 H2O
-
uncultured bacterium 3 D-glucose
-
?
hydroxyethylcellulose + H2O
-
uncultured bacterium ?
-
?
laminarin + H2O
-
uncultured bacterium 6 D-glucose
-
?
additional information Umcel9y-1 is an efficient endoglucanase and also exhibits high activities of exoglucanase and transglycosylation. The transglycosylation products of Umcel9y-1 including sophorose, laminaribiose, and gentiobiose, and transglycosylation are detected under all activated conditions. The decreasing order of catalytic efficiency for polysaccharides, cellooligosaccharides, and aryl-beta-glycosides is p-nitrophenyl-D-cellobioside, barley glucan, cellopentaose, cellotetraose, cellotriose, hydroxyethylcellulose, cellohexaose, laminarin, and carboxymethylcellulose, respectively uncultured bacterium ?
-
?

Synonyms

Synonyms Comment Organism
umcel9y-1
-
uncultured bacterium

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
-
uncultured bacterium

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
41.7
-
cellohexaose pH 7.0, 37°C uncultured bacterium
42.3
-
cellopentaose pH 7.0, 37°C uncultured bacterium
49.2
-
carboxymethyl cellulose pH 7.0, 37°C uncultured bacterium
127.5
-
Laminarin pH 7.0, 37°C uncultured bacterium
159
-
cellotetraose pH 7.0, 37°C uncultured bacterium
185.6
-
hydroxyethylcellulose pH 7.0, 37°C uncultured bacterium
466
-
4-nitrophenyl D-cellobioside pH 7.0, 37°C uncultured bacterium
897
-
cellotriose pH 7.0, 37°C uncultured bacterium
3276
-
Barley beta-glucan pH 7.0, 37°C uncultured bacterium

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5 7
-
uncultured bacterium

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
2.3
-
carboxymethyl cellulose pH 7.0, 37°C uncultured bacterium
2.7
-
Laminarin pH 7.0, 37°C uncultured bacterium
5.6
-
hydroxyethylcellulose pH 7.0, 37°C uncultured bacterium
5.9
-
cellotriose pH 7.0, 37°C uncultured bacterium
8.2
-
cellohexaose pH 7.0, 37°C uncultured bacterium
8.7
-
cellotetraose pH 7.0, 37°C uncultured bacterium
68.7
-
cellopentaose pH 7.0, 37°C uncultured bacterium
246
-
Barley beta-glucan pH 7.0, 37°C uncultured bacterium
337
-
4-nitrophenyl D-cellobioside pH 7.0, 37°C uncultured bacterium