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ZMYM2通过不同的共同调节复合体控制人类可转移元素的转录

Danielle J Owen¹, Elisa Aguilar-Martinez¹, Zongling Ji¹

¹Faculty of Biology, Medicine and Health, University of Manchester, Michael Smith Building, Oxford Road, Manchester, United Kingdom.

|November 7, 2023

概括

指蛋白ZMYM2是一种转录抑制剂,与TRIM28等复合体相互作用,调节基因表达. 它主要通过控制拓关联域 (TADs) 内的逆转移子来影响编码基因.

科学领域:

分子生物学分子生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.
基因规则基因规则

背景情况:

ZMYM2 (指蛋白) 是一个转录调节器,对细胞身份至关重要.
ZMYM2的失调与脏疾病和癌症有关.
众所周知,ZMYM2促进了转录抑制.

研究的目的:

为ZMYM2在转录抑制中的作用提供进一步的证据.
阐明ZMYM2在人类细胞中的功能和物理相互作用.
研究ZMYM2调节基因表达的机制.

主要方法:

染色体免疫沉测定用于识别ZMYM2相关复合体.
共同免疫沉以确认物理相互作用.
基因表达分析以评估调控效应.
SUMOylation测试用于研究复杂的形成.

主要成果:

ZMYM2形成了不同的染色质结合复合体,包括LSD1-CoREST-HDAC1核心压缩复合体.
发现了ZMYM2与ADNP以及ZMYM2与TRIM28/KAP1之间的新相互作用.
ZMYM2-TRIM28复合体依赖于SUMOylation,与抑制色素相关.
ZMYM2和TRIM28共同调节许多基因,主要是通过TAD内部的区域调节和逆转移子表达的直接控制.
ZMYM2-ADNP复合体与SINEs相关,而ZMYM2-TRIM28复合体与LTR元素相关.

结论:

ZMYM2作为转录抑制剂,部分通过其与核心抑制剂复合体的关联而起作用.
ZMYM2-TRIM28相互作用在TADs内的区域基因调节中发挥着重要作用.
ZMYM2直接调节逆转移子表达,这可能间接影响局部编码基因表达和染色质环境.

关键词:

在此之前,ADNP是ADNP.在 TRIM2828 中,这就是ZMYM2的意思.在这种情况下,染色染色素染色体是一种染色体.基因表达的基因表达方式人类人类人类人类人类人类人类转录转录是一种转录.可转移的元素可以转移.

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