Msx1在抑制性靶標(biāo)基因上的結(jié)合位點(diǎn)傾向于分布在LADs內(nèi)
[Abstract]:In the nucleus, the spatial arrangement of the genome is not random. The chromatin of different kinds of cells can be arranged in different spaces; the chromatin of the same kind of cells is different in its spatial arrangement in different development processes. The nuclear fiber layer can be combined with the LADs on the chromatin to anchor the LADs in the nucleus of the nucleus, thereby inhibiting the transcription of a specific gene. In the early stage of our study, the homeobox protein Msx1 was enriched in the nucleus of the nucleus during the limb development. In addition, in the mouse myoblasts C2C12, the exogenous Msx1 is also enriched in the nucleus of the nucleus, while the inhibitory target gene (Myo D, Myf5, etc.) of Msx1 also tends to be positioned in the nucleus of the nucleus. So, is Msx1 related to the inhibition of its target gene? Therefore, we have systematically analyzed the relationship between the binding of Msx1 to the DNA and the LAD at the genomic level. In the mouse myoblasts, C2C12, Msx1, as a transcription-inhibitory factor, has about 20% of the binding sites of Msx1 in the genome (these binding sites are located almost in the inhibitory target gene) in or in the LADs. In contrast,68% to 71% of LADs contain at least one Msx1 binding site, and up to 75% of LADs contain at least one Msx1 binding site in the LDS combined with the nuclear nuclear week. Myo D, which is mainly used as a transcription activator, has a much lower binding site in the genome than Msx1, but it is less in the LADs or overlaps with Msx1; and the LAMDs containing at least one of the Myo D binding sites are also significantly less. This indicates that the binding site of Msx1 on the inhibitory target gene tends to be distributed within the LADs, which provides a new way for studying the mechanism of Msx1 to inhibit the target gene in the future.
【作者單位】: 復(fù)旦大學(xué)生命科學(xué)學(xué)院遺傳工程國家重點(diǎn)實(shí)驗(yàn)室;
【基金】:上海市浦江人才計(jì)劃(14PJ1401300) 上海高校特聘教授(東方學(xué)者)崗位計(jì)劃(TP2015009)共同資助
【分類號】:Q78
【相似文獻(xiàn)】
相關(guān)期刊論文 前2條
1 吳敏,韓召軍;miRNA研究方法進(jìn)展[J];生物技術(shù)通訊;2005年05期
2 ;[J];;年期
相關(guān)會議論文 前2條
1 郭錫熔;徐廣峰;史春梅;趙亞萍;季晨博;;生物信息學(xué)預(yù)測hsa-miR-26b的作用靶標(biāo)及功能[A];中華醫(yī)學(xué)會第十七次全國兒科學(xué)術(shù)大會論文匯編(上冊)[C];2012年
2 邵金平;曹靖;王劍南;任秀花;臧衛(wèi)東;;利用雙熒光素酶報(bào)告基因法檢測miRNA30b對SCN9A表達(dá)的調(diào)節(jié)作用[A];中國解剖學(xué)會2013年年會論文文摘匯編[C];2013年
相關(guān)重要報(bào)紙文章 前3條
1 記者 趙鳳華 通訊員 王懷民;我科學(xué)家“看清”PTB蛋白是如何致癌的[N];科技日報(bào);2010年
2 記者 韓曉玲 通訊員 王懷民;武大教授揭示致癌蛋白作用新機(jī)制[N];湖北日報(bào);2010年
3 駐鄂記者 錢忠軍 通訊員 王懷民;揭示致癌蛋白作用新機(jī)制[N];文匯報(bào);2010年
相關(guān)博士學(xué)位論文 前1條
1 王大海;麥長管蚜轉(zhuǎn)錄組測序、RNAi靶標(biāo)基因篩選及其和豌豆蚜的比較轉(zhuǎn)錄組學(xué)分析[D];中國農(nóng)業(yè)科學(xué)院;2013年
相關(guān)碩士學(xué)位論文 前5條
1 劉娟;熱處理對沙梨離體植株體內(nèi)microRNAs和來源于ASGV的vsiRNAs的影響[D];華中農(nóng)業(yè)大學(xué);2015年
2 萬季;MicroRNA靶標(biāo)預(yù)測軟件的測評及靶標(biāo)基因特征分析[D];華中科技大學(xué);2007年
3 胡國建;番茄Sly-miR166及其靶標(biāo)基因SlREV的克隆、鑒定及其對果實(shí)形成的研究[D];重慶大學(xué);2013年
4 張曉宇;人和人皰疹病毒6型miRNA與靶標(biāo)基因的預(yù)測及其功能初步研究[D];東北林業(yè)大學(xué);2012年
5 段旭初;黑腹果蠅基因間區(qū)microRNA在S2細(xì)胞中的轉(zhuǎn)錄活性與轉(zhuǎn)錄后加工的初步分析[D];南京農(nóng)業(yè)大學(xué);2009年
,本文編號:2518133
本文鏈接:http://sikaile.net/kejilunwen/jiyingongcheng/2518133.html