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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Redox regulation of the MED28 and MED32 mediator subunits is important for development and senescence
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Redox regulation of the MED28 and MED32 mediator subunits is important for development and senescence

机译:MED28和MED32介体亚基的氧化还原调节对发育和衰老很重要

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摘要

Mediator is a conserved multi-protein complex that acts as a bridge between promoter-bound transcriptional regulators and RNA polymerase II. While redox signaling is important in adjusting plant metabolism and development, the involvement of Mediator in redox homeostasis and regulation only recently started to emerge. Our previous results show that the MED10a, MED28, and MED32 Mediator subunits form various types of covalent oligomers linked by intermolecular disulfide bonds in vitro. To link that with biological significance we have characterized Arabidopsis med32 and med28 mutants and found that they are affected in root development and senescence, phenotypes possibly associated to redox changes.
机译:介体是一种保守的多蛋白复合物,可作为启动子结合的转录调节因子和RNA聚合酶II之间的桥梁。尽管氧化还原信号在调节植物代谢和发育中很重要,但介体参与氧化还原稳态和调节的作用才刚刚开始出现。我们以前的结果表明,MED10a,MED28和MED32介体亚基在体外形成了各种类型的通过分子间二硫键连接的共价低聚物。为了将其与生物学意义联系起来,我们对拟南芥属med32和med28突变体进行了表征,并发现它们在根系发育和衰老中受影响,这些表型可能与氧化还原变化有关。

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