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Literature summary extracted from

  • Nahalka, J.; Dib, I.; Nidetzky, B.
    Encapsulation of Trigonopsis variabilis D-amino acid oxidase and fast comparison of the operational stabilities of free and immobilized preparations of the enzyme (2008), Biotechnol. Bioeng., 99, 251-260.
    View publication on PubMed

General Stability

EC Number General Stability Organism
1.4.3.3 carrier-free enzyme is entrapped in semipermeable microcapsules produced from the polycation poly(methylene-co-guanidine) in combination with CaCl2 and the polyanions alginate and cellulose sulfate, the effectiveness of the entrapped oxidase for O2-dependent conversion of D-methionine at 25°C is 75-95% of the free enzyme preparation Trigonopsis variabilis

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.4.3.3 poly(methylene-co-guanidine) in the presence of poly(methylene-co-guanidine) (1.8%, w/v) the enzyme activity decreases irreversibly with a half-life time of about 1.75 min at 25°C Trigonopsis variabilis

Organism

EC Number Organism UniProt Comment Textmining
1.4.3.3 Trigonopsis variabilis
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.4.3.3 D-methionine + 2,6-dichlorophenolindophenol + H2O
-
Trigonopsis variabilis ?
-
?

Synonyms

EC Number Synonyms Comment Organism
1.4.3.3 D-amino acid oxidase
-
Trigonopsis variabilis
1.4.3.3 DAO
-
Trigonopsis variabilis

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.4.3.3 25 50 added FAD does not stabilize DAO at and below 35°C, but it contributes up to 3.6fold extra stability to the enzyme activity at temperatures higher than 35°C, with a half-life of 60 h encapsulated DAO is 720fold more stable than the free enzyme under conditions of bubble aeration at 25°C, the soluble oxidase is stabilized by added FAD only at temperatures of 35°C or greater, at 50°C encapsulated preparations of the oxidase are much more stable than the free enzyme whose half-life is only 40 min Trigonopsis variabilis

Cofactor

EC Number Cofactor Comment Organism Structure
1.4.3.3 FAD added FAD does not stabilize DAO at and below 35°C, but it contributes up to 3.6fold extra stability to the enzyme activity at temperatures higher than 35°C Trigonopsis variabilis