Cohesin Disrupts Polycomb-Dependent Chromosome Interactions in Embryonic Stem Cells
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
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
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
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]
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
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]
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
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]
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]
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

