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Literature summary extracted from

  • Sa-Pereira, P.; Carvalho, A.S.L.; Costa-Ferreira, M.; Aires-Barros, M.R.
    Thermostabilization of Bacillus subtilis CCMI 966 xylanases with trehalose. Study of deactivation kinetics (2004), Enzyme Microb. Technol., 34, 278-282.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
3.2.1.8 trehalose activates both isozymes and stabilizes them at higher temperatures Bacillus subtilis

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.32 extracellular
-
Bacillus subtilis
-
-

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.8 Bacillus subtilis
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2 isozymes: alkaline XylI and neutral XylII
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3.2.1.8 Bacillus subtilis CCMI 966
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2 isozymes: alkaline XylI and neutral XylII
-
3.2.1.32 Bacillus subtilis
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CCMI 966, enzymes alkaline Xyl I, neutral Xyl II
-

Synonyms

EC Number Synonyms Comment Organism
3.2.1.8 xylanase
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Bacillus subtilis

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.8 additional information
-
trehalose stabilizes both isozymes at 60°C and 70°C and increases the enzyme activity, thermal deactivation kinetics of enzyme forms XylI and XylII Bacillus subtilis
3.2.1.8 60
-
50% final residual activity in presence of 0.5 M trehalose as well as 8fold increased half-life of XylII and 2.5fold of XylI, inactivation in absence of trehalose Bacillus subtilis
3.2.1.8 70
-
35% final residual activity in presence of 0.5 M trehalose as well as 2fold increased half-lives of XylII and XylI, inactivation in absence of trehalose Bacillus subtilis
3.2.1.32 60
-
Xyl I, 3 h, 20% of initial activity Bacillus subtilis
3.2.1.32 60
-
Xyl I, 3 h, presence of 0.5 M trehalose, 50% of initial activity Bacillus subtilis
3.2.1.32 60
-
Xyl II, 3 h, complete inactivation Bacillus subtilis
3.2.1.32 60
-
Xyl II, 3 h, presence of 0.5 M trehalose, 50% of initial activity Bacillus subtilis
3.2.1.32 70
-
Xyl I, 3 h, no activity Bacillus subtilis
3.2.1.32 70
-
Xyl I, 3 h, presence of 0.5 M trehalose, 36% of initial activity Bacillus subtilis
3.2.1.32 70
-
Xyl II, 3 h, presence of 0.5 M trehalose, 50% of initial activity Bacillus subtilis

pI Value

EC Number Organism Comment pI Value Maximum pI Value
3.2.1.8 Bacillus subtilis alkaline isozyme XylI 4.7 4.6
3.2.1.8 Bacillus subtilis neutral isozyme XylII
-
7.5
3.2.1.32 Bacillus subtilis or higher, enzyme Xyl I 4.7 4.6
3.2.1.32 Bacillus subtilis enzyme Xyl II
-
7.5