Results 1 to 10 of about 26,113 (251)

Cohesin Disrupts Polycomb-Dependent Chromosome Interactions in Embryonic Stem Cells

open access: yesCell Reports, 2020
Summary: How chromosome organization is related to genome function remains poorly understood. Cohesin, loop extrusion, and CCCTC-binding factor (CTCF) have been proposed to create topologically associating domains (TADs) to regulate gene expression. Here,
James Rhodes   +2 more
exaly   +4 more sources

Cohesin mediates DNA loop extrusion by a “swing and clamp” mechanism

open access: yesCell, 2021
Summary Structural maintenance of chromosomes (SMC) complexes organize genome topology in all kingdoms of life and have been proposed to perform this function by DNA loop extrusion. How this process works is unknown.
Daniel Canena Manhães de Carvalho   +2 more
exaly   +2 more sources

The Cohesin Release Factor WAPL Restricts Chromatin Loop Extension

open access: yesCell, 2017
Summary The spatial organization of chromosomes influences many nuclear processes including gene expression. The cohesin complex shapes the 3D genome by looping together CTCF sites along chromosomes. We show here that chromatin loop size can be increased
Bas van Steensel   +2 more
exaly   +2 more sources

Cohesin-dependence of neuronal gene expression relates to chromatin loop length

open access: yeseLife, 2022
Cohesin and CTCF are major drivers of 3D genome organization, but their role in neurons is still emerging. Here, we show a prominent role for cohesin in the expression of genes that facilitate neuronal maturation and homeostasis.
Lesly Calderon   +15 more
doaj   +2 more sources

Diverse Roles of Cohesin in Chromosome Dynamics and Stem Cells [PDF]

open access: yesBioTech
The cohesin complex is a highly conserved, ring-shaped protein assembly that plays fundamental roles in chromosome biology. Originally identified as the molecular glue that holds sister chromatids together from DNA replication until cell division ...
Eui-Hwan Choi
doaj   +2 more sources

RAD21 is the core subunit of the cohesin complex involved in directing genome organization

open access: yesGenome Biology, 2023
Background The ring-shaped cohesin complex is an important factor for the formation of chromatin loops and topologically associating domains (TADs) by loop extrusion.
Yuao Sun   +16 more
doaj   +2 more sources

Context-dependent regulation of IgH V(D)J recombination by cohesin-STAG1 and cohesin-STAG2 [PDF]

open access: yesNature Communications
Cohesin-mediated loop extrusion is central to IgH V(D)J recombination in early developing B cells, driving D-to-JH rearrangements and VH-to-DJH rearrangements, with the latter step regulated by the cohesin release factor WAPL.
Fujung Chang   +7 more
doaj   +2 more sources

A Structure-Based Mechanism for DNA Entry into the Cohesin Ring

open access: yesMolecular Cell, 2020
Despite key roles in sister chromatid cohesion and chromosome organization, the mechanism by which cohesin rings are loaded onto DNA is still unknown.
Juri Rappsilber   +2 more
exaly   +2 more sources

Cohesin acts as a transcriptional gatekeeper by restraining pause–release to promote processive elongation [PDF]

open access: yesNature Communications
Cohesin organizes 3D chromatin architecture, including promoter–enhancer loops, yet its loss has surprisingly modest effects on steady-state gene expression.
Shoin Tei   +7 more
doaj   +2 more sources

Interplay between cohesin and TORC1 links chromosome segregation and gene expression to environmental changes [PDF]

open access: yeseLife
Cohesin is a DNA tethering complex essential for chromosome structure and function. In fission yeast, defects in the cohesin loader Mis4 result in chromosome segregation defects and dysregulated expression of genes near chromosome ends.
Dorian Besson   +10 more
doaj   +2 more sources

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