BRAHMA-interacting proteins BRIP1 and BRIP2 are core subunits of Arabidopsis SWI/SNF complexes

BRAHMA-interacting proteins BRIP1 and BRIP2 are core subunits of Arabidopsis SWI/SNF complexes
复制标题

BRAHMA 相互作用蛋白 BRIP1 和 BRIP2 是拟南芥 SWI/SNF 复合物的核心亚基

DOI:
10.1038/s41477-020-0734-z
复制
发表时间:
2020-08
期刊:
影响因子:
18
通讯作者:
Li Chenlong
Li Chenlong
中科院分区:
生物学1区
文献类型:
--
作者:
Yu Yaoguang;Liang Zhenwei;Song Xin;Fu Wei;Xu Jianqu;Lei Yawen;Yuan Liangbing;Ruan Jiuxiao;Chen Chen;Fu Wenqun;Cui Yuhai;Huang Shangzhi;Li Chenlong

文献摘要

参考文献

相似文献

开关缺陷/蔗糖不可发酵(SWI/SNF)染色质重塑复合物是真核生物中通过调节染色质结构来控制基因表达的多蛋白质机制。然而,植物中SWI/SNF复合物的完整亚基组成仍不清楚。在这里,我们报告说,在拟南芥中,两个同源的胶质瘤肿瘤抑制候选区结构域的蛋白质,命名为BRAHMA相互作用蛋白1(BRIP 1)和BRIP 2,是植物SWI/SNF复合物的核心亚基。brip 1 brip 2双突变体表现出与BRAHMA(BRM)突变体非常相似的发育表型和转录组。遗传互作试验表明BRIP 1和BRIP 2与BRM共同调控基因表达。此外,BRIP 1和BRIP 2与含有BRM的SWI/SNF复合物物理相互作用,并与BRM广泛共定位在染色质上。BRIP 1和BRIP 2的同时突变导致几乎所有BRM靶基因座的BRM占有率降低,SWI/SNF组装体的丰度显著降低。总之,我们的工作确定了新的核心亚基的BRM含有SWI/SNF复合物在植物中,并揭示了这些亚基在维持丰富的SWI/SNF复合物在植物中的重要作用。拟南芥SWI/SNF复合物调节染色质结构和基因表达,并含有许多亚基,包括BRAHMA。两个同源的BRAHMA相互作用蛋白,即BRIP 1和BRIP 2,被确定为SWI/SNF复合物的新的核心亚基。
Switch defective/sucrose non-fermentable (SWI/SNF) chromatin remodelling complexes are multi-protein machineries that control gene expression by regulating chromatin structure in eukaryotes. However, the full subunit composition of SWI/SNF complexes in plants remains unclear. Here we report that in Arabidopsis thaliana, two homologous glioma tumour suppressor candidate region domain-containing proteins, named BRAHMA-interacting proteins 1 (BRIP1) and BRIP2, are core subunits of plant SWI/SNF complexes. brip1 brip2 double mutants exhibit developmental phenotypes and a transcriptome remarkably similar to those of BRAHMA (BRM) mutants. Genetic interaction tests indicated that BRIP1 and BRIP2 act together with BRM to regulate gene expression. Furthermore, BRIP1 and BRIP2 physically interact with BRM-containing SWI/SNF complexes and extensively co-localize with BRM on chromatin. Simultaneous mutation of BRIP1 and BRIP2 results in decreased BRM occupancy at almost all BRM target loci and substantially reduced abundance of the SWI/SNF assemblies. Together, our work identifies new core subunits of BRM-containing SWI/SNF complexes in plants and uncovers the essential role of these subunits in maintaining the abundance of SWI/SNF complexes in plants. The Arabidopsis SWI/SNF complexes regulate chromatin structure and gene expression, and contain many subunits, including BRAHMA. Two homologous BRAHMA-interacting proteins, namely BRIP1 and BRIP2, are identified as new core subunits of the SWI/SNF complex.
DOI: 10.1038/s41588-018-0187-8
发表时间: 2018-09
期刊: Nature genetics
影响因子: 30.8
作者:
Yang Z;Qian S;Scheid RN;Lu L;Chen X;Liu R;Du X;Lv X;Boersma MD;Scalf M;Smith LM;Denu JM;Du J;Zhong X
通讯作者: Zhong X
DOI: 10.1038/nbt.1621
发表时间: 2010-05
影响因子: 46.9
作者:
Trapnell C;Williams BA;Pertea G;Mortazavi A;Kwan G;van Baren MJ;Salzberg SL;Wold BJ;Pachter L
通讯作者: Pachter L
DOI: 10.1038/s41556-018-0221-1
发表时间: 2018-12
影响因子: 21.3
作者:
Michel BC;D'Avino AR;Cassel SH;Mashtalir N;McKenzie ZM;McBride MJ;Valencia AM;Zhou Q;Bocker M;Soares LMM;Pan J;Remillard DI;Lareau CA;Zullow HJ;Fortoul N;Gray NS;Bradner JE;Chan HM;Kadoch C
通讯作者: Kadoch C
鉴定雌激素受体结合与乳腺癌的临床结局有关。
DOI: 10.1038/nature10730
发表时间: 2012-01-04
期刊: NATURE
影响因子: 64.8
作者:
Ross-Innes, Caryn S.;Stark, Rory;Teschendorff, Andrew E.;Holmes, Kelly A.;Ali, H. Raza;Dunning, Mark J.;Brown, Gordon D.;Gojis, Ondrej;Ellis, Ian O.;Green, Andrew R.;Ali, Simak;Chin, Suet-Feung;Palmieri, Carlo;Caldas, Carlos;Carroll, Jason S.
通讯作者: Carroll, Jason S.
基于表位标记的蛋白质的人造miRNA筛选,用于优化植物中的基因沉默。
DOI: 10.1038/nprot.2014.061
发表时间: 2014-04
期刊: Nature protocols
影响因子: 14.8
作者:
通讯作者: --