NASP maintains histone H3-H4 homeostasis through two distinct H3 binding modes.

NASP maintains histone H3-H4 homeostasis through two distinct H3 binding modes.
复制标题

NASP通过两种不同的H3结合模式维持组蛋白H3- h4的稳态。

DOI:
10.1093/nar/gkac303
复制
发表时间:
2022-05-20
影响因子:
14.9
通讯作者:
Huang, Hongda
Huang, Hongda
中科院分区:
生物学2区
文献类型:
--
作者:
Bao, Hongyu;Carraro, Massimo;Flury, Valentin;Liu, Yanhong;Luo, Min;Chen, Liu;Groth, Anja;Huang, Hongda

文献摘要

参考文献

被引文献

相似文献

组蛋白分子伴侣调节组蛋白代谢的各个方面。NASP是H3-H4二聚体的主要组蛋白伴侣,对于防止组蛋白降解至关重要。在这里,我们确定了两种不同的组蛋白结合模式的NASP和揭示他们如何合作,以确保组蛋白H3-H4供应。我们确定了sNASP二聚体、sNASP二聚体与两个H3 α3肽的复合物以及sNASP-H3-H4-ASF 1b共分子伴侣复合物的结构。这捕获了NASP的不同功能,并鉴定了分别涉及H3 α3螺旋和H3 αN区域的两种不同结合模式。功能研究表明,H3 α N-相互作用代表了NASP在细胞中的主要结合模式,NASP对H3 αN区域的屏蔽对于维持H3-H4组蛋白可溶性库是必不可少的。总之,我们的研究揭示了NASP作为保护组蛋白稳态的主要H3-H4分子伴侣的分子基础。
Histone chaperones regulate all aspects of histone metabolism. NASP is a major histone chaperone for H3–H4 dimers critical for preventing histone degradation. Here, we identify two distinct histone binding modes of NASP and reveal how they cooperate to ensure histone H3–H4 supply. We determine the structures of a sNASP dimer, a complex of a sNASP dimer with two H3 α3 peptides, and the sNASP–H3–H4–ASF1b co-chaperone complex. This captures distinct functionalities of NASP and identifies two distinct binding modes involving the H3 α3 helix and the H3 αN region, respectively. Functional studies demonstrate the H3 αN-interaction represents the major binding mode of NASP in cells and shielding of the H3 αN region by NASP is essential in maintaining the H3–H4 histone soluble pool. In conclusion, our studies uncover the molecular basis of NASP as a major H3–H4 chaperone in guarding histone homeostasis.
DOI: 10.1016/j.molcel.2010.01.033
发表时间: 2010-03-12
期刊: MOLECULAR CELL
影响因子: 16
作者:
Jasencakova, Zuzana;Scharf, Annette N. D.;Groth, Anja
通讯作者: Groth, Anja
DOI: 10.1074/jbc.m410397200
发表时间: 2005-01-28
影响因子: 4.8
作者:
Alekseev, OM;Widgren, EE;O'Rand, MG
通讯作者: O'Rand, MG
DOI: 10.1074/jbc.m111.223453
发表时间: 2011-05-20
期刊: The Journal of biological chemistry
影响因子: --
作者:
Alvarez F;Muñoz F;Schilcher P;Imhof A;Almouzni G;Loyola A
通讯作者: Loyola A
DOI: 10.1038/nrm.2016.159
发表时间: 2017-03
期刊: Nature reviews. Molecular cell biology
影响因子: --
作者:
Hammond CM;Strømme CB;Huang H;Patel DJ;Groth A
通讯作者: Groth A
DOI: 10.1107/s0907444909052925
发表时间: 2010-02
期刊: Acta crystallographica. Section D, Biological crystallography
影响因子: --
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者: Zwart PH