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ABI4: versatile activator and repressor

机译:ABI4:多功能活化剂和阻遏物

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The ABSCISIC ACID INSENSITIVE4 (ABI4) gene was discovered to be an abscisic acid (ABA) signaling responsive transcription factor active during seed germination. The evolutionary history of the ABI4 gene supports its role as an ABA signaling intermediate in land plants. Investigating the ABI4 protein-cis element interaction supports the proposal that ABI4 binding to its known CE1 cis-element competes with transcription factor binding to the overlapping G-Box element. Recent publications report on ABI4 as a regulatory factor in diverse processes. In developing seedlings, ABI4 mediates sugar signaling, lipid breakdown, and plastid-to-nucleus signaling. Moreover, ABI4 is a regulator of rosette growth, redox signaling, cell wall metabolism and the effect of nitrate on lateral root development.
机译:发现ABSCISIC ACID INSENSITIVE4(ABI4)基因是一种脱落酸(ABA)信号,其在种子萌发过程中具有活性。 ABI4基因的进化史支持其作为陆地植物中ABA信号传导中间体的作用。研究ABI4蛋白-顺式元件相互作用支持以下提议:ABI4与其已知的CE1顺式元件结合,而转录因子与重叠的G-Box元件结合。最近的出版物报道了ABI4作为多种过程中的调节因子。在发育中的幼苗中,ABI4介导糖信号,脂质分解和质体-核信号传导。此外,ABI4是花环生长,氧化还原信号传导,细胞壁代谢以及硝酸盐对侧根发育的影响的调节剂。

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