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A three-component monooxygenase from Rhodococcus wratislaviensis may expand industrial applications of bacterial enzymes.
- Source :
-
Communications biology [Commun Biol] 2021 Jan 04; Vol. 4 (1), pp. 16. Date of Electronic Publication: 2021 Jan 04. - Publication Year :
- 2021
-
Abstract
- The high-valent iron-oxo species formed in the non-heme diiron enzymes have high oxidative reactivity and catalyze difficult chemical reactions. Although the hydroxylation of inert methyl groups is an industrially promising reaction, utilizing non-heme diiron enzymes as such a biocatalyst has been difficult. Here we show a three-component monooxygenase system for the selective terminal hydroxylation of α-aminoisobutyric acid (Aib) into α-methyl-D-serine. It consists of the hydroxylase component, AibH1H2, and the electron transfer component. Aib hydroxylation is the initial step of Aib catabolism in Rhodococcus wratislaviensis C31-06, which has been fully elucidated through a proteome analysis. The crystal structure analysis revealed that AibH1H2 forms a heterotetramer of two amidohydrolase superfamily proteins, of which AibHm2 is a non-heme diiron protein and functions as a catalytic subunit. The Aib monooxygenase was demonstrated to be a promising biocatalyst that is suitable for bioprocesses in which the inert C-H bond in methyl groups need to be activated.
Details
- Language :
- English
- ISSN :
- 2399-3642
- Volume :
- 4
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Communications biology
- Publication Type :
- Academic Journal
- Accession number :
- 33398074
- Full Text :
- https://doi.org/10.1038/s42003-020-01555-3