...
首页> 外文期刊>Journal of genetics >Circadian and pharmacological regulation of casein kinase I in the hamster suprachiasmatic nucleus
【24h】

Circadian and pharmacological regulation of casein kinase I in the hamster suprachiasmatic nucleus

机译:仓鼠视交叉上核酪蛋白激酶I的昼夜节律和药理学调控

获取原文
获取原文并翻译 | 示例
           

摘要

In mammals, the mechanism for the generation of circadian rhythms and entrainment by light-dark (LD) cycles resides in the hypothalamic suprachiasmatic nuclei (SCN), and the principal signal that adjusts this biological clock with environmental timing is the light:dark cycle. Within the SCN, rhythms are generated by a complex of molecular feedback loops that regulate the transcription of clock genes, including per and cry. Posttranslational modification plays an essential role in the regulation of biological rhythms; in particular, clock gene phosphorylation by casein kinase I, both epsilon (CKIE >) and delta (CKI delta), regulates key molecular mechanisms in the circadian clock. In this paper, we report for the first time that CKI activity undergoes a significant circadian rhythm in the SCN (peaking at circadian time 12, the start of the subjective night), and its pharmacological inhibition alters photic entrainment of the clock, indicating that CKI may be a key element in this pathway.
机译:在哺乳动物中,昼夜节律的产生和光暗(LD)循环夹带的机制存在于下丘脑上视交叉上核(SCN),并且随着环境时间调整该生物钟的主要信号是光:暗循环。在SCN中,节奏是由复杂的分子反馈回路产生的,这些回路调节时钟基因的转录,包括per和cry。翻译后修饰在调节生物节律中起着至关重要的作用。特别是,酪蛋白激酶I(ε(CKIE>)和δ(CKIδ))的时钟基因磷酸化调节了昼夜节律的关键分子机制。在本文中,我们首次报告CKI活动在SCN中经历了显着的昼夜节律(在昼夜时间12,主观夜晚的开始),并且其药理学抑制作用改变了时钟的光合,表明CKI可能是此途径中的关键要素。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号