Rhythmic U2af26 alternative splicing controls PERIOD1 stability and the circadian clock in mice.

Rhythmic U2af26 alternative splicing controls PERIOD1 stability and the circadian clock in mice.
复制标题

节律性 U2af26 选择性剪接控制小鼠 PERIOD1 稳定性和生物钟

DOI:
10.1016/j.molcel.2014.04.015
复制
发表时间:
2014
期刊:
影响因子:
16
通讯作者:
Heyd F
Heyd F
中科院分区:
生物学1区
文献类型:
--
作者:
Preussner M;Wilhelmi I;Schultz A-S;Finkernagel F;Michel M;Moroy T;Heyd F

文献摘要

参考文献

被引文献

相似文献

昼夜节律钟驱动基因表达的每日节律以控制代谢、行为和生理;虽然基本的转录反馈回路被很好地定义,但选择性剪接对昼夜节律生物学的影响仍然知之甚少。在这里,我们描述了一个强大的昼夜节律和光诱导剪接开关,改变阅读框架的小鼠mRNA编码U2-转录因子26(U2 AF 26)。这导致翻译到3′ UTR,产生一个与果蝇时钟调节因子TIMELESS同源的C末端。这种新的U2 AF 26变体使PERIOD 1蛋白不稳定,并且U2 AF 26缺陷小鼠显示出几乎相同的PERIOD 1蛋白水平和外周时钟中昼夜节律mRNA表达的广泛缺陷。在行为水平上,这些小鼠在实验性时差反应后显示出增加的相位提前适应。这些数据表明,光诱导的U2 af 26选择性剪接是一种缓冲机制,限制PERIOD 1的诱导,从而稳定昼夜节律钟,防止光暗条件下的异常变化。
The circadian clock drives daily rhythms in gene expression to control metabolism, behavior, and physiology; while the underlying transcriptional feedback loops are well defined, the impact of alternative splicing on circadian biology remains poorly understood. Here we describe a robust circadian and light-inducible splicing switch that changes the reading frame of the mouse mRNA encoding U2-auxiliary-factor 26 (U2AF26). This results in translation far into the 3′ UTR, generating a C terminus with homology to theDrosophilaclock regulator TIMELESS. This new U2AF26 variant destabilizes PERIOD1 protein, and U2AF26-deficient mice show nearly arrhythmic PERIOD1 protein levels and broad defects in circadian mRNA expression in peripheral clocks. At the behavioral level, these mice display increased phase advance adaptation following experimental jet lag. These data suggest light-inducedU2af26alternative splicing to be a buffering mechanism that limits PERIOD1 induction, thus stabilizing the circadian clock against abnormal changes in light:dark conditions.
报告肝脏蛋白质组的昼夜节律编排
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
A. B. Reddy;N. Karp;E. Maywood;E. Sage;M. Deery;J. Chesham;M. Odell;K. Lilley;C. Kyriacou;M. Hastings
通讯作者: M. Hastings
U2AF6(与 U2AF35 相关的剪接因子)的表征
DOI: --
发表时间: 2002
影响因子: 5.3
作者:
J. Shepard;M. Reick;S. Olson;B. Graveley
通讯作者: B. Graveley
DOI: 10.1073/pnas.0607567104
发表时间: 2007-02-06
影响因子: 11.1
作者:
Kojima, Shihoko;Matsumoto, Ken;Tei, Hajime
通讯作者: Tei, Hajime
DOI: 10.1101/gad.1837009
发表时间: 2009-10-01
影响因子: 10.5
作者:
Lee, Ji-Ann;Tang, Zhen-Zhi;Black, Douglas L.
通讯作者: Black, Douglas L.
差异亚型表达以及与 P32 调节蛋白的相互作用控制剪接因子 U2AF26* 的亚细胞定位
DOI: 10.1074/jbc.m801014200
发表时间: 2008
影响因子: 4.8
作者:
F. Heyd;M. Carmo;T. Möröy
通讯作者: T. Möröy