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对孤儿核受体、生殖细胞核因子(GCNF)和肝脏受体同源物1(LRH-1)对Oct4调控的结构研究。

A Structural Investigation into Oct4 Regulation by Orphan Nuclear Receptors, Germ Cell Nuclear Factor (GCNF), and Liver Receptor Homolog-1 (LRH-1).

作者信息

Weikum Emily R, Tuntland Micheal L, Murphy Michael N, Ortlund Eric A

机构信息

Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, 30322 USA.

Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, 30322 USA.

出版信息

J Mol Biol. 2016 Dec 4;428(24 Pt B):4981-4992. doi: 10.1016/j.jmb.2016.10.025. Epub 2016 Oct 27.

Abstract

Oct4 is a transcription factor required for maintaining pluripotency and self-renewal in stem cells. Prior to differentiation, Oct4 must be silenced to allow for the development of the three germ layers in the developing embryo. This fine-tuning is controlled by the nuclear receptors (NRs), liver receptor homolog-1 (LRH-1) and germ cell nuclear factor (GCNF). Liver receptor homolog-1 is responsible for driving the expression of Oct4 where GCNF represses its expression upon differentiation. Both receptors bind to a DR0 motif located within the Oct4 promoter. Here, we present the first structure of mouse GCNF DNA-binding domain in complex with the Oct4 DR0. The overall structure revealed two molecules bound in a head-to-tail fashion on opposite sides of the DNA. Additionally, we solved the structure of the human LRH-1 DNA-binding domain bound to the same element. We explore the structural elements that govern Oct4 recognition by these two NRs.

摘要

八聚体结合转录因子4(Oct4)是维持干细胞多能性和自我更新所必需的转录因子。在分化之前,Oct4必须被沉默,以允许发育中的胚胎形成三个胚层。这种微调由核受体(NRs)、肝脏受体同源物1(LRH-1)和生殖细胞核因子(GCNF)控制。肝脏受体同源物1负责驱动Oct4的表达,而GCNF在分化时抑制其表达。这两种受体都与Oct4启动子内的DR0基序结合。在此,我们展示了与Oct4 DR0复合的小鼠GCNF DNA结合结构域的首个结构。整体结构显示两个分子以头对尾的方式结合在DNA的相对两侧。此外,我们解析了与同一元件结合的人LRH-1 DNA结合结构域的结构。我们探索了这两种核受体识别Oct4的结构元件。

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本文引用的文献

1
Processing of X-ray diffraction data collected in oscillation mode.
Methods Enzymol. 1997;276:307-26. doi: 10.1016/S0076-6879(97)76066-X.
2
Germ Cell Nuclear Factor (GCNF) Represses Oct4 Expression and Globally Modulates Gene Expression in Human Embryonic Stem (hES) Cells.
J Biol Chem. 2016 Apr 15;291(16):8644-52. doi: 10.1074/jbc.M115.694208. Epub 2016 Jan 14.
3
Establishing pluripotency in early development.
Biochim Biophys Acta. 2015 Jun;1849(6):626-36. doi: 10.1016/j.bbagrm.2015.03.006. Epub 2015 Apr 7.
4
Role of Oct4 in the early embryo development.
Cell Regen. 2014 Apr 29;3(1):7. doi: 10.1186/2045-9769-3-7. eCollection 2014.
5
6
Regulation of OCT4 gene expression by liver receptor homolog-1 in human embryonic carcinoma cells.
Biochem Biophys Res Commun. 2012 Oct 19;427(2):315-20. doi: 10.1016/j.bbrc.2012.09.049. Epub 2012 Sep 18.
7
PDB_REDO: automated re-refinement of X-ray structure models in the PDB.
J Appl Crystallogr. 2009 Jun 1;42(Pt 3):376-384. doi: 10.1107/S0021889809008784. Epub 2009 Apr 3.
10
MEGAWHOP cloning: a method of creating random mutagenesis libraries via megaprimer PCR of whole plasmids.
Methods Enzymol. 2011;498:399-406. doi: 10.1016/B978-0-12-385120-8.00017-6.

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