Trans-o-hydroxybenzylidenepyruvate hydratase-aldolase as a biocatalyst

Article Abstract:

Research has been conducted on the hydratase-aldolase-catalyzed conversion of trans-o-hydroxybenzylidenepyruvate to salicylaldehyde and pyruvate. Results indicate that some aromatic and nonaromatic aldehydes are aldol condensation substrates.

Catalysis, Aldehydes

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Products from the incomplete metabolism of pyrene by polycyclic aromatic hydrocarbon-degrading bacteria

Article Abstract:

Research has been conducted on the regulated pollutant purene. The formation of nonmineral products by polycyclic aromatic hydrocarbon-degrading bacterial strains has been investigated.

Bacteria, Hydrocarbon research

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Biotransformation of 6,6-dimethylfulvene by Pseudomonas putida RE213

Article Abstract:

6,6-dimethylfulvene biotransformation was investigated as a route to chiral C5 carbocyclic synthons. Isopropylbenzene 2,3-dioxygenase was used in the dihydriol dehydrogenase-deficient mutant strain Pseudomonas putida RE213. 6,6-dimethylfulvene was converted into a chiral product identified as(+)-(1R,2S)-cis-1,2-dihydroxy-5-(1-methylethylidene)-3-cyclopentene. The transformation shows the potential of bacterial arene dioxygenase for the direct conversion of cyclopentadienylidene compounds to homochiral C5 carbocyclic cis-diols which can be used in enantiocontrolled organic syntheses.

Biosynthesis

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