Bacterial defluorination of 4-fluoroglutamic acid
Files in This Item:
|Defluorination text revision.doc||Text||57 kB||Microsoft Word||Download|
|Defluorination figures revision.doc||Figures||582.5 kB||Microsoft Word||Download|
|Title:||Bacterial defluorination of 4-fluoroglutamic acid||Authors:||Donnelly, Clár
Murphy, Cormac D.
|Permanent link:||http://hdl.handle.net/10197/3781||Date:||2007||Abstract:||Fluorinated amino acids are used as enzyme inhibitors, mechanistic probes and in the production of pharmacologically active peptides. Because enantiomerically pure 4-fluoroglutamate is difficult to prepare, the selective degradation of the l-isomer is a potentially convenient method of obtaining d-4-fluoroglutamate from the racemate. In this paper, we describe our investigations on the degradation of 4-fluoroglutamate by bacteria. Fluoride ion was detected in resting-cell cultures of a number of bacteria that were incubated with racemic 4-fluoroglutamate. Analysis of the culture supernatants by chiral gas chromatography–mass spectrometry revealed that only the l-isomer was degraded. The degradation of 4-fluoroglutamate was also examined in cell-free extracts of Streptomyces cattleya and Proteus mirabilis, and it was observed that equimolar concentrations of fluoride ion and ammonia were generated. The activity was located in the soluble fraction of cell extracts, thus is not related to the l-2-amino-4-chloro-4-pentenoic acid dehydrochlorinase previously identified in membrane fractions of P. mirabilis.||Funding Details:||Other funder||Type of material:||Journal Article||Publisher:||Springer||Copyright (published version):||2007 Springer-Verlag||Keywords:||Dehalogenation;Amino acid;Bacteria||Subject LCSH:||Amino acids
|DOI:||10.1007/s00253-007-1200-9||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Biomolecular and Biomedical Science Research Collection|
CSCB Research Collection
Show full item record
Page view(s) 20164
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.