A Pair of Bacterial Siderophores Releases and Traps an Intercellular Signal Molecule: An Unusual Case of Natural Nitrone Bioconjugation
作者:Felix Trottmann、Jakob Franke、Keishi Ishida、María García-Altares、Christian Hertweck
DOI:10.1002/anie.201811131
日期:2019.1.2
from the siderophore pyochelin. Addition of IQS to bacterial cultures (Burkholderia thailandensis) showed that the signaling molecule is captured by a congener of another siderophore family, malleobactin, to form a nitrone conjugate (malleonitrone) that is active against the IQS‐producer. This study uncovers complex communication processes with derailed siderophore functions, a novel nitrone bioconjugation
在微生物相互作用中,细菌使用具有特定功能的各种分子,例如感知环境,与其他微生物或宿主的交流以及赋予毒力。因此,了解细菌传播的分子基础与生态学和医学息息相关。有针对性的基因激活和体外研究表明,人类病原体铜绿假单胞菌和相关细菌的细胞间信号分子和疾病介质IQS(芥子醛)源自铁载体泛素菌素。将IQS添加到细菌培养物中(Burkholderia thailandensis)表明,信号分子被另一个铁载体家族的同系物捕获,形成了对IQS产生者有活性的硝酮结合物(malleonitrone)。