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Structural Biology of Nuclear Auxin Action

机译:核生长素作用的结构生物学

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摘要

Auxin coordinates plant development largely via hierarchical control of gene expression. During the past decades, the study of early auxin genes paired with the power of Arabidopsis genetics have unraveled key nuclear components and molecular interactions that perceive the hormone and activate primary response genes. Recent research in the realm of structural biology allowed unprece-dented insight into: (i) the recognition of auxin-responsive DNA elements by auxin transcription factors; (ii) the inactivation of those auxin response factors by early auxin-inducible repressors; and (iii) the activation of target genes by auxin-triggered repressor degradation. The biophysical studies reviewed here provide an impetus for elucidating the molecular determinants of the intricate interactions between core components of the nuclear auxin response module.
机译:生长素主要通过基因表达的分级控制来协调植物发育。在过去的几十年中,对早期生长素基因的研究与拟南芥遗传学的作用相结合,揭示了感知激素并激活主要反应基因的关键核成分和分子相互作用。在结构生物学领域的最新研究允许对以下方面进行空前的了解:(i)生长素转录因子对生长素反应性DNA元件的识别; (ii)早期的生长素诱导型阻遏物使那些生长素反应因子失活; (iii)通过生长素触发的阻遏物降解激活靶基因。这里审查的生物物理研究为阐明核生长素反应模块核心组件之间复杂相互作用的分子决定因素提供了动力。

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