Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum

Veldmann K, Dachwitz S, Risse JM, Lee J-H, Sewald N, Wendisch VF (2019)
Frontiers in Bioengineering and Biotechnology 7: 219.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Brominated compounds such as 7-bromo-L-tryptophan (7-Br-Trp) occur in Nature. Many synthetic and natural brominated compounds have applications in the agriculture, food, and pharmaceutical industries, for example, the 20S-proteasome inhibitor TMC-95A that may be derived from 7-Br-Trp. Mild halogenation by cross-linked enzyme aggregates containing FAD-dependent halogenase, NADH-dependent flavin reductase, and alcohol dehydrogenase as well as by fermentation with recombinant Corynebacterium glutamicum expressing the genes for the FAD-dependent halogenase RebH and the NADH-dependent flavin reductase RebF from Lechevalieria aerocolonigenes have recently been developed as green alternatives to more hazardous chemical routes. In this study, the fermentative production of 7-Br-Trp was established. The fermentative process employs an L-tryptophan producing C. glutamicum strain expressing rebH and rebF from L. aerocolonigenes for halogenation and is based on glucose, ammonium and sodium bromide. C. glutamicum tolerated high sodium bromide concentrations, but its growth rate was reduced to half-maximal at 0.09 g L−1 7-bromo-L-tryptophan. This may be, at least in part, due to inhibition of anthranilate phosphoribosyltransferase by 7-Br-Trp since anthranilate phosphoribosyltransferase activity in crude extracts was half-maximal at about 0.03 g L−1 7-Br-Trp. Fermentative production of 7-Br-Trp by recombinant C. glutamicum was scaled up to a working volume of 2 L and operated in batch and fed-batch mode. The titers were increased from batch fermentation in CGXII minimal medium with 0.3 g L−1 7-Br-Trp to fed-batch fermentation in HSG complex medium, where up to 1.2 g L−1 7-Br-Trp were obtained. The product isolated from the culture broth was characterized by NMR and LC-MS and shown to be 7-Br-Trp.
Erscheinungsjahr
2019
Zeitschriftentitel
Frontiers in Bioengineering and Biotechnology
Band
7
Art.-Nr.
219
eISSN
2296-4185
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
Page URI
https://pub.uni-bielefeld.de/record/2937045

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Veldmann K, Dachwitz S, Risse JM, Lee J-H, Sewald N, Wendisch VF. Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum. Frontiers in Bioengineering and Biotechnology . 2019;7: 219.
Veldmann, K., Dachwitz, S., Risse, J. M., Lee, J. - H., Sewald, N., & Wendisch, V. F. (2019). Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum. Frontiers in Bioengineering and Biotechnology , 7, 219. doi:10.3389/fbioe.2019.00219
Veldmann, K., Dachwitz, S., Risse, J. M., Lee, J. - H., Sewald, N., and Wendisch, V. F. (2019). Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum. Frontiers in Bioengineering and Biotechnology 7:219.
Veldmann, K., et al., 2019. Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum. Frontiers in Bioengineering and Biotechnology , 7: 219.
K. Veldmann, et al., “Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum”, Frontiers in Bioengineering and Biotechnology , vol. 7, 2019, : 219.
Veldmann, K., Dachwitz, S., Risse, J.M., Lee, J.-H., Sewald, N., Wendisch, V.F.: Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum. Frontiers in Bioengineering and Biotechnology . 7, : 219 (2019).
Veldmann, Kareen, Dachwitz, Steffen, Risse, Joe Max, Lee, Jin-Ho, Sewald, Norbert, and Wendisch, Volker F. “Bromination of L-tryptophan in a fermentative process with Corynebacterium glutamicum”. Frontiers in Bioengineering and Biotechnology 7 (2019): 219.
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2019-10-15T05:55:41Z
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