Chrysobactin siderophores produced by Dickeya chrysanthemi EC16.
Chrysobactin siderophores produced by Dickeya chrysanthemi EC16.
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DOI：
10.1021/np200126z
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发表时间：
2011-05-27
影响因子：
5.1
通讯作者：
Butler A
中科院分区：
文献类型：
--
作者：
Sandy M;Butler A
植物病原菌菊花Dickeya菊花EC16（以前称为菊花石油杆菌EC16和菊花Erwinia菊花EC16）被发现产生一种新的三儿茶酚胺铁载体环状三红素，相关的儿茶酚胺化合物，线状三红素和二红素，以及先前报道的单体铁载体单位黄蜡素。金牛丝蛋白由l -丝氨酸、d -赖氨酸和2,3-二羟基苯甲酸（DHBA）组成。三红球蛋白是由三丝氨酸内酯主链连接而成的环三聚体。环状trichrysobactin的铁配合物的手性为Λ构型，类似于Fe(III)-bacillibactin，它在DHBA和l -苏氨酸组分之间含有甘氨酸间隔物，而Fe(III)-enterobactin则相反，它含有直接连接到l -丝氨酸的DHBA。
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, as well as 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 Λ configuration, similar to Fe(III)-bacillibactin, which contains a glycine spacer between the DHBA and L-threonine components and opposite that of Fe(III)-enterobactin, which contains DHBA ligated directly to L-serine.
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