Barry, Sarah M., Kers, Johan A, Johnson, Evan G, Song, Lijiang, Aston, Philip R. , Patel, Bhumit, Krasnoff, Stuart B, Crane, Brian R, Gibson, Donna M, Loria, Rosemary and Challis, Gregory L. (2012) Cytochrome P450–catalyzed L-tryptophan nitration in thaxtomin phytotoxin biosynthesis. Nature Chemical Biology, Vol. 8 (No.10). pp. 814-816. doi:10.1038/nchembio.1048 ISSN 1552-4450.

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Abstract

Thaxtomin phytotoxins produced by plant-pathogenic Streptomyces species contain a nitro group that is essential for phytotoxicity. The N,N′-dimethyldiketopiperazine core of thaxtomins is assembled from L-phenylalanine and L-4-nitrotryptophan by a nonribosomal peptide synthetase, and nitric oxide synthase–generated NO is incorporated into the nitro group, but the biosynthesis of the nonproteinogenic amino acid L-4-nitrotryptophan is unclear. Here we report that TxtE, a unique cytochrome P450, catalyzes L-tryptophan nitration using NO and O2.

Item Type:	Journal Article
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry Q Science > QR Microbiology
Divisions:	Faculty of Science, Engineering and Medicine > Science > Chemistry
Journal or Publication Title:	Nature Chemical Biology
Publisher:	Nature Publishing Group
ISSN:	1552-4450
Official Date:	2 September 2012
Dates:	Date Event 2 September 2012 Published
Volume:	Vol. 8
Number:	No.10
Page Range:	pp. 814-816
DOI:	10.1038/nchembio.1048
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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