期刊
JOURNAL OF NATURAL PRODUCTS
卷 74, 期 5, 页码 1207-1212出版社
AMER CHEMICAL SOC
DOI: 10.1021/np200126z
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资金
- NIH [GM38130]
- Direct For Mathematical & Physical Scien [1059067] Funding Source: National Science Foundation
- Division Of Chemistry [1059067] Funding Source: National Science Foundation
The plant pathogen Dickeya chrysanthemi EC16 (formerly known as Petrobacterium chrysanthemi EC16 and Erwinia chrysanthemi EC16) was found to produce a new triscatecholamide siderophore, cyclic trichrysobactin, the related catecholamide compounds, linear trichrysobactin and dichrysobactin, and the previously reported monomeric siderophore unit, chrysobactin. Chrysobactin is comprised of L-serine, D-lysine, and 2,3-dihydroxybenzoic acid (DHBA). Trichrysobactin is a cyclic trimer of chrysobactin joined by a triserine lactone backbone. The chirality of the ferric complex of cyclic trichrysobactin is found to be in the A configuration, similar to Fe(III)-bacillibactin, which contains a glycine spacer between the DHBA and L-threonine components and is opposite that of Fe(III)-enterobactin, which contains DHBA ligated directly to L-serine.
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