Structural insights into p300 regulation and acetylation-dependent genome organisation.
Structural insights into p300 regulation and acetylation-dependent genome organisation.
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对P300调节和乙酰化依赖性基因组组织的结构见解。
DOI:
10.1038/s41467-022-35375-2
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发表时间:
2022-12-15
影响因子:
16.6
通讯作者:
Panne, Daniel
中科院分区:
文献类型:
--
作者:
Ibrahim, Ziad;Wang, Tao;Destaing, Olivier;Salvi, Nicola;Hoghoughi, Naghmeh;Chabert, Clovis;Rusu, Alexandra;Gao, Jinjun;Feletto, Leonardo;Reynoird, Nicolas;Schalch, Thomas;Zhao, Yingming;Blackledge, Martin;Khochbin, Saadi;Panne, Daniel
Histone modifications are deposited by chromatin modifying enzymes and read out by proteins that recognize the modified state. BRD4-NUT is an oncogenic fusion protein of the acetyl lysine reader BRD4 that binds to the acetylase p300 and enables formation of long-range intra- and interchromosomal interactions. We here examine how acetylation reading and writing enable formation of such interactions. We show that NUT contains an acidic transcriptional activation domain that binds to the TAZ2 domain of p300. We use NMR to investigate the structure of the complex and found that the TAZ2 domain has an autoinhibitory role for p300. NUT-TAZ2 interaction or mutations found in cancer that interfere with autoinhibition by TAZ2 allosterically activate p300. p300 activation results in a self-organizing, acetylation-dependent feed-forward reaction that enables long-range interactions by bromodomain multivalent acetyl-lysine binding. We discuss the implications for chromatin organisation, gene regulation and dysregulation in disease. Here the authors use structural analyses to show that an intrinsically disordered transcription activation domain in the oncogene BRD4-NUT binds to and activates p300. This in-turn drives formation of higher-order, acetylation-dependent chromatin condensates.
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影响因子:
64.8
作者:
Ahn JH;Davis ES;Daugird TA;Zhao S;Quiroga IY;Uryu H;Li J;Storey AJ;Tsai YH;Keeley DP;Mackintosh SG;Edmondson RD;Byrum SD;Cai L;Tackett AJ;Zheng D;Legant WR;Phanstiel DH;Wang GG
通讯作者:
Wang GG
影响因子:
10.5
作者:
Alekseyenko AA;Walsh EM;Wang X;Grayson AR;Hsi PT;Kharchenko PV;Kuroda MI;French CA
通讯作者:
French CA
影响因子:
64.8
作者:
Cabianca, Daphne S.;Munoz-Jimenez, Celia;Gasser, Susan M.
通讯作者:
Gasser, Susan M.
影响因子:
64.5
作者:
Basu, Shaon;Mackowiak, Sebastian D.;Hnisz, Denes
通讯作者:
Hnisz, Denes
影响因子:
64.5
作者:
Ahmad, K;Henikoff, S
通讯作者:
Henikoff, S