Comments: |
The enzyme from Pseudomonas chlororaphis contains Ca2+ and protoheme IX, the iron of which must be in the form iron(II) for activity. The enzyme exhibits a strong preference for aliphatic aldoximes, such as butyraldoxime and acetaldoxime, over aromatic aldoximes, such as pyridine-2-aldoxime, which is a poor substrate. No activity was found with the aromatic aldoximes benzaldoxime and pyridine-4-aldoxime. |
References: |
1. |
Oinuma, K.-I., Hashimoto, Y., Konishi, K., Goda, M., Noguchi, T., Higashibata, H. and Kobayashi, M. Novel aldoxime dehydratase involved in carbon-nitrogen triple bond synthesis of Pseudomonas chlororaphis B23: Sequencing, gene expression, purification and characterization. J. Biol. Chem. 278 (2003) 29600–29608. [DOI] [PMID: 12773527] |
2. |
Xie, S.X., Kato, Y., Komeda, H., Yoshida, S. and Asano, Y. A gene cluster responsible for alkylaldoxime metabolism coexisting with nitrile hydratase and amidase in Rhodococcus globerulus A-4. Biochemistry 42 (2003) 12056–12066. [DOI] [PMID: 14556637] |
3. |
Kato, Y., Yoshida, S., Xie, S.-X. and Asano, Y. Aldoxime dehydratase co-existing with nitrile hydratase and amidase in the iron-type nitrile hydratase-producer Rhodococcus sp. N-771. J. Biosci. Bioeng. 97 (2004) 250–259. [DOI] [PMID: 16233624] |
|