Protein Variants | Comment | Organism |
---|---|---|
Y141A | the mutant enzyme is still active and converted the aliphatic (valeronitrile) and the aromatic substrate (2-phenylpropionitrile) with similar relative activities as the wild-type enzyme | Pseudomonas fluorescens |
Y141W | the mutant enzyme converts valeronitrile with a much higher relative activity than 2-phenylpropionitrile | Pseudomonas fluorescens |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Pseudomonas fluorescens | Q5EG61 | - |
- |
Pseudomonas fluorescens EBC191 | Q5EG61 | - |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
2 fumarodinitrile + 3 H2O | 11% compared to the activity with 3-hexenedinitrile. Fumarodinitrile is converted to the monocarboxylate and the monocarboxamide in a ratio of about 65:35 | Pseudomonas fluorescens | 3-cyanoacrylamide + 3-cyanoacrylic acid + NH3 | - |
? | |
2-chloropropionitrile + 2 H2O | 86% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | 2-chloropropionic acid + NH3 | - |
? | |
2-hydroxy-3-butenenitrile + 2 H2O | 8% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | 2-hydroxybut-3-enoic acid + NH3 | - |
? | |
2-hydroxybutyronitrile + H2O | 3% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | 2-hydroxybutyrate + NH3 | - |
? | |
2-methyl-3-butenenitrile + 2 H2O | 3% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | 2-methyl-but-3-enoic acid + NH3 | - |
? | |
2-methyleneglutarodinitrile + H2O | 11% compared to the activity with 3-hexenedinitrile. 2-Methyleneglutarodinitrile is mainly converted to the corresponding monocarboxylic acid , but also some traces of the monoamide are formed | Pseudomonas fluorescens | ? + NH3 | - |
? | |
2-phenylpropionitrile + 2 H2O | - |
Pseudomonas fluorescens | 2-phenylpropionic acid + NH3 | - |
? | |
3-hexenedinitrile + H2O | - |
Pseudomonas fluorescens | ? + NH3 | - |
? | |
acrylonitrile + 2 H2O | 5% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | acrylic acid + NH3 | - |
? | |
adiponitrile + 4 H2O | 3% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | adipic acid + 2 NH3 | - |
? | |
allylcyanide + 2 H2O | 12% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | but-3-enoic acid + NH3 | - |
? | |
additional information | the enzyme shows preference for unsaturated aliphatic substrates containing 5-6 carbon atoms. Increased reaction rates are also found for aliphatic nitriles carrying electron withdrawing substituents (e.g. chloro- or hydroxy-groups) close to the nitrile group. Aliphatic dinitriles are attacked only at one of the nitrile groups and with most of the tested dinitriles the monocarboxylates are detected as major products. Substrates converted with 1% less compared to the activity with 3-hexenedinitrile: 2-methylbutyronitrile, decanedinitrile, octanedinitrile, cis,trans-crotononitrile, popionitrile, isovaleronitrile, lactonitrile, butyronitrile | Pseudomonas fluorescens | ? | - |
- |
|
valeronitrile + H2O | 25% compared to the activity with 3-hexenedinitrile | Pseudomonas fluorescens | valeric acid + NH3 | - |
? |
Synonyms | Comment | Organism |
---|---|---|
NitA | - |
Pseudomonas fluorescens |