4.5 Editorial Material

Phase separation drives X-chromosome inactivation

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Biochemistry & Molecular Biology

Xist spatially amplifies SHARP/SPEN recruitment to balance chromosome-wide silencing and specificity to the X chromosome

Joanna W. Jachowicz et al.

Summary: This study reveals that Xist drives non-stoichiometric recruitment of SHARP/SPEN to the inactive X chromosome, including at regions not occupied by Xist, through concentration-dependent homotypic assemblies of SHARP, which is required for chromosome-wide silencing. This spatial amplification allows Xist to balance chromosome-wide silencing and specificity to the X, thereby enabling Xist to silence the X, the whole X, and nothing but the X.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2022)

Article Biochemistry & Molecular Biology

Xist nucleates local protein gradients to propagate silencing across the X chromosome

Yolanda Markaki et al.

Summary: The lncRNA Xist forms locally confined foci containing a small number of RNA molecules and supramolecular complexes with critical silencing protein SPEN. Protein aggregation and exchange generate local gradients that regulate broad chromatin regions and propagate gene silencing. This mechanism involves functional nuclear compartmentalization through crowding of regulators, enabling silencing of target genes by few RNA molecules.
Article Multidisciplinary Sciences

SPEN is required for Xist upregulation during initiation of X chromosome inactivation

Teresa Robert-Finestra et al.

Summary: The study demonstrates that SPEN plays a crucial role in the initiation of X chromosome inactivation by mediating the silencing of Tsix by Xist.

NATURE COMMUNICATIONS (2021)

Article Multidisciplinary Sciences

Time-resolved structured illumination microscopy reveals key principles of Xist RNA spreading

Lisa Rodermund et al.

Summary: The study reveals that Xist RNA directs X chromosome inactivation in mammals by spreading along the chromosome and recruiting chromatin modifiers, with a feedback mechanism linking Xist RNA synthesis and degradation, as well as physical coupling between preceding and newly synthesized Xist RNA molecules. SPEN, a key factor for Xist-mediated gene silencing, plays a distinct role in Xist RNA localization, stability, and coupling behaviors.

SCIENCE (2021)

Article Multidisciplinary Sciences

SPEN integrates transcriptional and epigenetic control of X-inactivation

Francois Dossin et al.

NATURE (2020)

Article Multidisciplinary Sciences

A protein assembly mediates Xist localization and gene silencing

Amy Pandya-Jones et al.

NATURE (2020)

Editorial Material Biochemistry & Molecular Biology

Phase separation drives X-chromosome inactivation: a hypothesis

Andrea Cerase et al.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2019)

Article Biochemistry & Molecular Biology

lncRNA-Induced Spread of Polycomb Controlled by Genome Architecture, RNA Abundance, and CpG Island DNA

Megan D. Schertzer et al.

MOLECULAR CELL (2019)

Article Biochemistry & Molecular Biology

Systematic Discovery of Xist RNA Binding Proteins

Ci Chu et al.

Article Multidisciplinary Sciences

The Xist lncRNA interacts directly with SHARP to silence transcription through HDAC3

Colleen A. McHugh et al.

NATURE (2015)

Article Multidisciplinary Sciences

The Xist RNA-PRC2 complex at 20-nm resolution reveals a low Xist stoichiometry and suggests a hit-and-run mechanism in mouse cells

Hongjae Sunwoo et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2015)

Article Multidisciplinary Sciences

Spatial separation of Xist RNA and polycomb proteins revealed by superresolution microscopy

Andrea Cerase et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2014)