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CTCF在介导三维基因组形成及调控基因表达中的研究进展 被引量:3
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作者 周聪 周强伟 +1 位作者 成盛 李国亮 《遗传》 CAS CSCD 北大核心 2021年第9期816-821,共6页
真核细胞间期的染色质在细胞核中经过复杂的盘曲折叠,形成高级拓扑结构,这样的染色质结构空间组织对基因表达有重要影响。CTCF(CCCTC-binding factor)作为关键的染色质高级结构架构蛋白,对三维基因组结构的形成起到了重要作用。CTCF还... 真核细胞间期的染色质在细胞核中经过复杂的盘曲折叠,形成高级拓扑结构,这样的染色质结构空间组织对基因表达有重要影响。CTCF(CCCTC-binding factor)作为关键的染色质高级结构架构蛋白,对三维基因组结构的形成起到了重要作用。CTCF还可以与基因组内大量的绝缘子结合,影响染色质远程交互,实现对增强子和基因转录调控的绝缘效应。本文主要对近期美国圣裘德儿童研究医院Chunliang Li团队对于CTCF完全降解后发现染色质可及性发生变化的研究结果,上海交通大学系统生物医学研究院吴强团队、美国加州路德维希癌症研究所任兵团队对于CTCF结合位点充当绝缘子作用机制的最新结果进行部分点评及讨论。 展开更多
关键词 CTCF 绝缘子 三维基因组 基因表达调控
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AraENCODE:A comprehensive epigenomic database of Arabidopsis thaliana
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作者 Fuming Lai Qiangqiang Fu +3 位作者 Liang Xie Yaping Fangi qiangwei zhou Guoliang Li 《Molecular Plant》 SCIE CSCD 2023年第7期1113-1116,共4页
Dear Editor,Arabidopsis thaliana is an important model organism in plant biology and genetics.The genome of Arabidopsis ecotype Columbia-0 has been sequenced and completely annotated(Cheng et al.,2017),which facilitat... Dear Editor,Arabidopsis thaliana is an important model organism in plant biology and genetics.The genome of Arabidopsis ecotype Columbia-0 has been sequenced and completely annotated(Cheng et al.,2017),which facilitates the genomics research of plants.Over the past two decades,advances in the gene regulation studies have elucidated a spectrum of epigenetic molecular phenomena,including DNA methylation,histone modification,chromatin accessibility,and chromatin interaction,which collectively form an additional layer of information based on DNA sequence(Law and Jacobsen,2010).The epigenome landscape has been characterized in Arabidopsis as more high-throughput analyses were developed(Zhao et al.,2022).Without a doubt,in-depth studies of gene expression regulation heavily rely on such epigenomic information.However,the utilization of this knowledge poses a challenge for certain groups lacking bioinformatics analysts or adequate computing resources. 展开更多
关键词 ARABIDOPSIS COLLECTIVE DOUBT
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