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The versatile role of MSKs in transcriptional regulation.肌动蛋白丝结合蛋白在转录调控中的多功能作用。
Trends Biochem Sci. 2009 Jun;34(6):311-8. doi: 10.1016/j.tibs.2009.02.007. Epub 2009 May 21.
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The dynamics of HMG protein-chromatin interactions in living cells.活细胞中HMG蛋白与染色质相互作用的动力学
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Recruitment of a chromatin remodelling complex by the Hog1 MAP kinase to stress genes.Hog1丝裂原活化蛋白激酶将染色质重塑复合物招募至应激基因。
EMBO J. 2009 Feb 18;28(4):326-36. doi: 10.1038/emboj.2008.299. Epub 2009 Jan 15.
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MSK activation and physiological roles.肌肉骨骼激活与生理作用。
Front Biosci. 2008 May 1;13:5866-79. doi: 10.2741/3122.
6
Mitogen-induced recruitment of ERK and MSK to SRE promoter complexes by ternary complex factor Elk-1.有丝分裂原通过三元复合因子Elk-1诱导ERK和MSK募集至SRE启动子复合物。
Nucleic Acids Res. 2008 May;36(8):2594-607. doi: 10.1093/nar/gkn099. Epub 2008 Mar 11.
7
DNA binding and phosphorylation induce conformational alterations in the kinase-inducible domain of CREB. Implications for the mechanism of transcription function.DNA结合和磷酸化诱导CREB激酶诱导结构域的构象改变。对转录功能机制的启示。
J Biol Chem. 2007 Jul 6;282(27):19872-83. doi: 10.1074/jbc.M701435200. Epub 2007 May 9.
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Identification of novel phosphorylation sites in MSK1 by precursor ion scanning MS.通过前体离子扫描质谱法鉴定丝裂原和应激激活蛋白激酶1(MSK1)中的新磷酸化位点。
Biochem J. 2007 Mar 15;402(3):491-501. doi: 10.1042/BJ20061183.
9
Induction of progesterone target genes requires activation of Erk and Msk kinases and phosphorylation of histone H3.孕激素靶基因的诱导需要激活Erk和Msk激酶以及组蛋白H3的磷酸化。
Mol Cell. 2006 Nov 3;24(3):367-81. doi: 10.1016/j.molcel.2006.10.011.
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Activated signal transduction kinases frequently occupy target genes.活化的信号转导激酶经常占据靶基因。
Science. 2006 Jul 28;313(5786):533-6. doi: 10.1126/science.1127677.

环腺苷酸反应元件结合蛋白 (CREB) 在体外控制 MSK1 介导的 c-fos 启动子上组蛋白 H3 的磷酸化。

cAMP-response element-binding protein (CREB) controls MSK1-mediated phosphorylation of histone H3 at the c-fos promoter in vitro.

机构信息

Department of Molecular Biology, Faculty of Medicine, Saitama Medical University, Saitama 350-0495.

Department of Biochemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Ibaraki 305-8575, Japan.

出版信息

J Biol Chem. 2010 Mar 26;285(13):9390-9401. doi: 10.1074/jbc.M109.057745. Epub 2010 Jan 20.

DOI:10.1074/jbc.M109.057745
PMID:20089855
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2843188/
Abstract

The rapid induction of the c-fos gene correlates with phosphorylations of histone H3 and HMGN1 by mitogen- and stress-activated protein kinases. We have used a cell-free system to dissect the mechanism by which MSK1 phosphorylates histone H3 within the c-fos chromatin. Here, we show that the reconstituted c-fos chromatin presents a strong barrier to histone H3 phosphorylation by MSK1; however, the activators (serum response factor, Elk-1, cAMP-response element-binding protein (CREB), and ATF1) bound on their cognate sites recruit MSK1 to phosphorylate histone H3 at Ser-10 within the chromatin. This activator-dependent phosphorylation of histone H3 is enhanced by HMGN1 and occurs preferentially near the promoter region. Among the four activators, CREB plays a predominant role in MSK1-mediated phosphorylation of histone H3, and the phosphorylation of Ser-133 in CREB is essential for this process. Mutational analyses of MSK1 show that its N-terminal inhibition domain is critical for the kinase to phosphorylate chromatin-embedded histone H3 in a CREB-dependent manner, indicating the presence of an intricate regulatory network for MSK1-mediated phosphorylation of histone H3.

摘要

c-fos 基因的快速诱导与有丝分裂原和应激激活蛋白激酶对组蛋白 H3 和 HMGN1 的磷酸化有关。我们使用无细胞体系来剖析 MSK1 在 c-fos 染色质内磷酸化组蛋白 H3 的机制。在这里,我们表明,重新构建的 c-fos 染色质对 MSK1 磷酸化组蛋白 H3 具有很强的阻碍作用;然而,结合在其同源位点上的激活剂(血清反应因子、 Elk-1、cAMP 反应元件结合蛋白 (CREB) 和 ATF1)招募 MSK1 在染色质内的 Ser-10 处磷酸化组蛋白 H3。这种依赖于激活剂的组蛋白 H3 磷酸化被 HMGN1 增强,并优先发生在启动子区域附近。在这四个激活剂中,CREB 在 MSK1 介导的组蛋白 H3 磷酸化中起着主要作用,并且 CREB 中的 Ser-133 磷酸化对于该过程是必需的。对 MSK1 的突变分析表明,其 N 端抑制结构域对于激酶以 CREB 依赖性方式磷酸化染色质中嵌入的组蛋白 H3 至关重要,这表明存在一个复杂的调节网络来调节 MSK1 介导的组蛋白 H3 磷酸化。