Siderophores of Marinobacter aquaeolei: petrobactin and its sulfonated derivatives
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- 作者：Vanessa V. Homann ; Katrina J. Edwards ; Eric A. Webb and Alison Butler
- 关键词：Marine siderophores ; Petrobactins ; Bacillibactins ; Sulfonated siderophores
- 刊名：Biometals
- 出版时间：August, 2009
- 出版年：2009
- 期刊代码：19_09660844
- 类别：bio
- 卷：22
- 期：4
- 页码：565-571
- 数据来源：sp
摘要
Siderophores are low molecular weight, high-affinity iron(III) ligands, produced by bacteria to solubilize and promote iron uptake under low iron conditions. Two prominent structural features characterize the majority of the marine siderophores discovered so far: (1) a predominance of suites of amphiphilic siderophores composed of an iron(III)-binding headgroup that is appended by one or two of a series of fatty acids and (2) a prevalence of siderophores that contain α-hydroxycarboxylic acid moieties (e.g., β-hydroxyaspartic acid or citric acid) which are photoreactive when coordinated to Fe(III). Variation of the fatty acid chain length affects the relative amphiphilicity within a suite of siderophores. Catecholate sulfonation is another structural variation that would affect the hydrophilicity of a siderophore. In addition to a review of the marine amphiphilic siderophores, we report the production of petrobactin disulfonate by Marinobacter aquaeolei VT8.