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首页> 外文期刊>Acta Physiologiae Plantarum >Proteomic analysis of Arabidopsis protein S-nitrosylation in response to inoculation with Pseudomonas syringae
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Proteomic analysis of Arabidopsis protein S-nitrosylation in response to inoculation with Pseudomonas syringae

机译：丁香假单胞菌接种对拟南芥蛋白S-亚硝基化的蛋白质组学分析

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摘要

Nitric oxide (NO) is a key signaling molecule in plants, being its biological effects mainly mediated through S-nitrosylation of cysteine thiols. Using the biotin switch method combined with mass spectrometry analysis we have identified 127 targets of S-nitrosylation in Arabidopsis cell suspension cultures and leaves challenged with virulent and avirulent isolates of Pseudomonas syringae pv. tomato. The NO targets are proteins associated with carbon, nitrogen, and sulpfur metabolism, photosynthesis, the cytoskeleton, stress-, pathogen- and redox-related and signaling proteins. Some proteins were previously identified in plants and mammals, while others (63%) represent novel targets of S-nitrosylation. Our data suggest that NO might be orchestrating the whole plant physiology, presumably through covalent modification of proteins.
机译：一氧化氮（NO）是植物中的关键信号分子，主要是通过半胱氨酸硫醇的S-亚硝基化介导的生物效应。使用生物素转换方法结合质谱分析，我们在拟南芥细胞悬浮培养物中鉴定了127个S-亚硝基化的靶标，并用丁香假单胞菌pv的强毒和无毒分离株攻击。番茄。 NO靶蛋白是与碳，氮和硫磺代谢，光合作用，细胞骨架，应激，病原体和氧化还原相关的信号蛋白相关的蛋白。某些蛋白质先前已在植物和哺乳动物中鉴定出来，而其他蛋白质（63％）代表了S-亚硝基化的新靶标。我们的数据表明NO可能通过蛋白质的共价修饰来协调整个植物的生理过程。

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